Opel Corsa released. Vulnerabilities Opel Corsa D, owner reviews. How to replace Opel Corsa - step by step instructions

Body galvanization Opel Corsa D

The table indicates whether the body of the Opel Corsa D car, produced from 2007 to 2013, is galvanized,
and processing quality.
Treatment Type Method Body condition
2007 PartialGalvanized zinc
(two-sided)

zinc layer 9 - 15 µm
Galvanizing result: Good
The car is already 12 years old. Given the age and quality of the zinc treatment of this car (under normal operating conditions), the corrosion of the body has just begun. It is difficult to notice if the car has not been hit and scratched.
2008 CompleteGalvanized zinc
(two-sided)
immersion in zinc electrolyte under the influence of current
zinc layer 9 - 15 µm
Galvanizing result: Good
The car is already 11 years old. Given the age and quality of the zinc treatment of this car (under normal operating conditions), the corrosion of the body has just begun. It is difficult to notice if the car has not been hit and scratched.
2009 CompleteGalvanized zinc
(two-sided)
immersion in zinc electrolyte under the influence of current
zinc layer 9 - 15 µm
Galvanizing result: Good
The machine is already 10 years old. Given the age and quality of the zinc treatment of this machine (under normal operating conditions), the first corrosion will begin after 1 year.
2010 CompleteGalvanized zinc
(two-sided)
immersion in zinc electrolyte under the influence of current
zinc layer 9 - 15 µm
Galvanizing result: Good
The machine is already 9 years old. Given the age and quality of the zinc treatment of this machine (under normal operating conditions), the first corrosion will begin after 2 years.
2011 CompleteGalvanized zinc
(two-sided)
immersion in zinc electrolyte under the influence of current
zinc layer 9 - 15 µm
Galvanizing result: Good
The machine is already 8 years old. Given the age and quality of the zinc treatment of this machine (under normal operating conditions), the first corrosion will begin after 3 years.
2012 CompleteGalvanized zinc
(two-sided)
immersion in zinc electrolyte under the influence of current
zinc layer 9 - 15 µm
Galvanizing result: Good
The machine is already 7 years old. Given the age and quality of the zinc treatment of this machine (under normal operating conditions), the first corrosion will begin after 4 years.
2013 CompleteGalvanized zinc
(two-sided)
immersion in zinc electrolyte under the influence of current
zinc layer 9 - 15 µm
includes a proportion of aluminum parts
Galvanizing result: Good
The machine is already 6 years old. Given the age and quality of the zinc treatment of this machine (under normal operating conditions), the first corrosion will begin after 5 years.
In case of damage to the galvanized body, corrosion destroys zinc, not steel.
Types of processing
Over the years, the processing itself has changed. Younger car - will always be galvanized better! Types of galvanization
The presence of zinc particles in the ground covering the body - does not affect its protection and is used by the manufacturer for the word "galvanization" in promotional materials. . Tests The test results of cars that left the assembly line with the same damage (cross) on the bottom of the front right door. The tests were carried out in the laboratory. Conditions in a hot salt mist chamber for 40 days correspond to 5 years of normal operation. hot dip galvanized car(layer thickness 12–15 µm)
Galvanized car(layer thickness 5–10 µm)

cold galvanized car(layer thickness 10 µm)
Zinc metal car
Car without galvanization
It is important to know— Over the years, manufacturers have improved the technology of galvanizing their cars. A younger car will always be better galvanized! – Coating thickness 2 to 10 µm(micrometers) provides excellent protection against the occurrence and spread of corrosion damage. - The rate of destruction of the active zinc layer, at the site of damage to the body, is from 1 to 6 microns per year. Zinc is more actively destroyed at elevated temperatures. - If the manufacturer has the term "galvanized" not added "full" This means that only the impacted elements were processed. - Pay more attention to the presence of a manufacturer's warranty on the body, rather than loud phrases about galvanizing from advertising. Additionally

The article tells about some features of the Opel Corsa D compact hatchback, about the most vulnerable places in the car.

Compact class D cars are very convenient for urban use - the car is easy to park, it consumes little fuel.

In Europe, small hatchbacks have long been very popular, and recently in Russia, such cars are increasingly found on the roads.

A bit from the history of Opel Corsa cars

History german car"Opel Corsa" starts in 1982, the first cars were presented in the back of a 3-door hatchback and 2-door sedan.

In 1985, a 5-door hatchback appeared and a 4-door sedan popular at that time, the model range power units was represented by engines of 1000 and 1300 cm 3.

The model was produced until 1993, then the German concern began production of a new compact car Opel Corsa B.

EXPLANATION: Class B is just a class of cars (compact type), for example, Mercedes has cars of class C and E. And the letters a, b, c, d are Opel 1, 2, 3, 4 generations, for simplicity they were denoted by letters . Opel Corsa a, b and c are previous generations car.

There were no more sedans in the second generation Corsa, the lineup was represented by 3-door and 5-door hatchbacks. New car acquired a more rounded shape, significant changes have occurred in appearance:

  • new optics appeared;
  • steel more streamlined bumpers;
  • the grille has changed.

The range of engines has significantly expanded - on the updated Opel Corsa, along with small engines, more powerful engines with volumes of 1400 and 1600 cm 3 began to be used, diesel engines of 1.5 and 1.7 liters were also installed on the car. The transmission used a 5-speed "mechanics" and a 4-speed automatic transmission.

Opel Corsa C was produced from 2000 to 2006, the model was also presented in a hatchback body, in a 3-door and 5-door version. New body became more reliable - due to galvanization, it staunchly resisted corrosion, the iron itself also became stronger.

A 125-horsepower 1.8-liter power unit was added to the line of gasoline engines, and a 1.5-liter engine was removed from the diesel range.

Corsa D compact hatchback fourth generation debuted in October 2006, the car was created jointly by General Motors and Fiat.

The new “smiling” car was produced on the Gamma platform, compared to the previous Corsa model, it became larger in size:

  • 160 mm longer;
  • 60 mm wider.

Just like the previous two generations, the new Corsa is available in 3-door and 5-door hatchback body styles, and the 5-door model is 24mm wider than the 3-door.

The Corsa D was assembled in Germany and Spain.

Opel Corsa D 2007

In 2007, the Corsa D version appeared with a new 1600 cm3 diesel engine (192 hp).

The compact hatchback was restyled in 2010:

  • in model range new colors appeared;
  • new engines were added to the line of power units;
  • the car received a different grille;
  • changed the front bumper.

Engines and related problems

On automotive market Opel Corsa D is mainly presented with gasoline engines 1000, 1200 and 1400 cm3, s diesel engines there are cars, but they are very rare.

On almost all gasoline engines, the front or rear crankshaft oil seal can leak, and oil often flows through the pressure sensor.

If a leak is detected through the sensor, the malfunction must be immediately eliminated, otherwise the oil may get on the wiring, and then the repair will cost much more.

You must not allow the engine to overheat - if the temperature indicator starts flashing or lights up red, the engine should be turned off, and the car should be loaded onto a tow truck and deal with what happened already in the car service.

Overheating primarily leads to warping of the block head - replacing the cylinder head is expensive for car owners.

If the crankcase ventilation system freezes in the cold, increased pressure is created in the motor. At the same time, the oil dipstick is squeezed out, and, if overlooked, oil may leak from the engine. Therefore, as a preventive measure, the ventilation system should be flushed every 50 thousand km.

Transmission

The most problematic Opel Corsa D gearboxes are robotic.

Gear shifting can occur with a crunch or knock, reverse gear is engaged with a grinding, while the car twitches or “thinks”.

First of all, the clutch fails, it is changed at 80-100 thousand km, but this is subject to careful operation.

Incorrect operation of the box can begin even at 30 thousand kilometers.

Often, on machines with an Easytronic gearbox, the gear selector creates problems.

Any problems with Easytronic should be contacted by specialized auto repair shops. An unqualified repair box can be completely “finished off”, and then you will have to buy a used part at a car disassembly, since a new “robot” costs unrealistic money.

Gives the least hassle manual transmission closer to a hundred thousand kilometers, clutch replacement may be necessary. If the box is not "teared", it passes for a long time.

Automatic transmissions are also quite reliable, but so that the transmission does not fail ahead of time, it follows through 50-60 thousand km.

Electrical part

The alternator and starter are problematic parts on many Opels. Before it "ends", the generator begins to whistle.

Often the voltage regulator fails, and then charging disappears. You can buy a Chinese generator, it is inexpensive, but how long a Chinese part can last is unknown.

Starters on the Opel Corsa are low-power, and fail from frequent engine starts, they break especially quickly in the cold.

Also, in some cases, cheap Chinese products help out, but it’s better not to be stingy and purchase an original starter.

The rear wiper motor can simply fail, and the most typical reason for its failure is the freezing of the rear brush to the glass.

Drivers, before turning on the rear wiper, first make sure that everything is in order with the brush.

Suspension

Suspension Opel Corsa D - standard for cars of this class:

  • front - MacPherson type;
  • rear - transverse beam with springs.

It cannot be said that something in the suspension breaks very often, but it is also difficult to call it too reliable.

As in any other passenger car, in the Korsa, first of all, they require the replacement of the stabilizer strut, shock absorbers are not very reliable.

However, here, as luck would have it, with a good combination of circumstances, the shock absorber struts can go up to 90 thousand km.

Almost all Opels are characterized by weak rear springs, on the Corsa D the springs also break, especially if you constantly overload the trunk. Generally rear suspension reliable and does not cause big complaints.

Body

Starting from the third generation corsa body on compact "Opels" they are galvanized, so they resist corrosion well.

Traditionally for Opel cars, over time, “saffron milk caps” appear on the edges of the rear fenders, in which case the rear bumper should be removed, defective areas cleaned, primed and painted.

Small cars in Russia are not in mass demand. One of the exceptions is the Opel Corsa, which managed to find its buyer. Subject to the careful attitude of the previous owner, it makes sense to take a used car.

Advantages of the Opel Corsa car

Opel relies on a combination of performance and low cost. All cars of the Corsa series were characterized by good running, reliability, pleasant design. The quality of the car has been preserved until the latest modifications B, C and especially D, where the developers used an enlarged, flexible SCCS platform in combination with a comfortable interior, safety, and handling.

The car managed to break into the TOP of small cars, overcoming the negative trends associated with the skepticism of the new owners of Opel from the General Motors concern.

In Russia, it completely occupied the top position in the rating, until the 2008 crisis and the fluctuations in Euro quotes aggravated sales. Despite the fall, the Opel Corsa continues to be in demand, attracting drivers with a wide range of engines, simple controls, and long-term operation. By 2017, 10 years have passed since the release of the first production car, but most cars remain on the move.

Body features Opel Corsa

Back in the twentieth century, the body was considered the most vulnerable spot Opel models, giving rise to stable associations with rust and corrosion. Using plastic, aluminum alloys and galvanization (missing only on the roof), the developers changed the trend, presenting a car in the face of the Corsa, which is practically not subject to corrosion, excluding situations associated with mechanical damage. Otherwise, scratches, chips, and other defects do not rot for years, even if the peeling of the paint is large.

Dangerous zones are a weak bottom, closed seams and joints. Here, despite the high-quality material, the paintwork easily comes off due to impact, sand, stones, which leads to the need to repaint rear fenders(3-door versions suffer) arches (especially in 5-door modifications) and hood edges. Since 2008, the Opel Corsa was no longer equipped with door moldings, which increased the number of dents and chips.

IMPORTANT! Very often, owners are faced with poor condition of the seams above the engine, blockage of the windshield drain channels, and moisture ingress into the passenger compartment. Problems are local in nature and in the absence of an accident, corrosion is excluded.

During operation, some of the owners use cheap Chinese spare parts, turn to the services of unskilled mechanics, try to save on painting, which invariably forms rust.

In the basic version, the car is equipped with a Pilkington windshield that can withstand strong mechanical stress. Rear glass it costs much more, and its heating filaments quickly crumble, requiring expensive repairs.

AFL headlights stand out, which at the time of release had no equivalent analogues. Despite strong light, they are prone to chafing, requiring polishing and rehabilitation of the fixing nodes if the bumper has been hit. After a few years, the work of the reflector and lens drives is disrupted, forcing the headlights to be replaced.

What to look for when inspecting the salon

Worthy Opel side Corsa D favors a salon that combines simplicity and comfort. The stove radiator is very reliable, the seating and peeling of the skin is observed only after many years of operation, and the smoothness of the contours of the lever casing disappears after 70 thousand kilometers. The remaining components serve reliably without losing aesthetic properties.

Backlight problems begin after 5-7 years, the replacement is complicated by the integral structure of the lamps and diodes. The climate system is copied from Fiat cars, repeating the advantages and disadvantages in the form of noisy bearings and the need to replace the fan after 150 km of run. Successful diagnostics and repairs require the skill of a craftsman who can repair air conditioner leaks caused by weak seals and vibration. Often the clutch and compressor fail, and the condenser is exposed to stones.

The on-board computer interface loses clarity over time, presenting a blurry image. The way out is to replace modules, blocks or use a color version of CID that works without problems.

As a rule, a violation of the functions of the interior systems is associated with a breakdown of the BCM components that play the role of a fuse. A simple replacement will not help, as the block shorts out many options, including rain indicators and fog lights. Other Corsa nodes act similarly, closely related to the configuration, which is why when changing them, you have to affect the wiring and modules.

Along with blocks, the main problems of Opel electronics traditionally lie in radiator resistors, whose coating is prone to burning. Rehabilitation is possible subject to the working condition of the part, and as an alternative, you can use the Niva resistor ( Chevrolet Niva), saving even the declared 1000-2000 rubles. The lack of timely repair causes consequences in the form of burst hoses, barrels, oil leaks from the engine.

ATTENTION! An expensive ignition module is considered a weak property of the Opel Corsa, which even in a used version costs 4 thousand rubles, and in the original it reaches 10 and even 30 (for a turbo engine) thousand rubles.

Among the common malfunctions in the electronics of the Opel Corsa is overheating of the ECU components caused by a break in the internal wires. It leads to engine failures, being eliminated subject to replacement or the services of a specialist capable of opening the block. Candles fail due to dirt, oil streaks, antifreeze getting into the tips.

Brake, steering system and suspension Corsa

Regardless of the version of the Opel Corsa, future car owners need to prepare in advance for the squeaks of the pads, and after a run of 150 thousand km, the wear of anthers and caliper fingers, especially the rear ones. Despite the reliable drums of these units, it is monitored during each maintenance.

ABS and brake lines do not cause any complaints, unlike the suspension, which:

ATTENTION! It is a vulnerable point of the car. So versions B and C roared like old VAZs, but in modification D, the problem was eliminated by increasing the resource of the rear lever silent blocks and the services of new suppliers of stabilization traction.

Noticeable fragility is demonstrated by wheel bearings, which make noise even before overcoming the milestone of 100 thousand kilometers traveled, especially if 16-inch discs are used and side impacts have occurred. The only way to save the details is a careful attitude, in this case they are not afraid of even 200 thousand kilometers, but when buying from hand, a check is required.

The steering has an electric booster, and malfunctions are associated with its failure, defects in anthers, and a rattling rack. All of them are caused by various reasons from burned out indicators and wires, to failures of the ABS, BCM modules. Very often the amplifier position signaling device breaks down, which is difficult to repair and expensive. Errors are observed with a weak generator, battery, on-board voltage.

In general, despite the dimensions, the car moves well, especially with a high-quality transmission and engine.

With which box to choose Opel Corsu

Car owners are presented with manual transmissions of the F13 + and F17 series, automatic machines with Easytronic robotic control created on their basis and real automatic transmissions AF13, which sometimes go like Aisin 60-40LE, used on 1.4 liter versions of the Corsa.

Each transmission has its pros and cons, so the F13 + and F17 mechanics are characterized by rapid wear of the shift block, where backlash accumulates very quickly. As an analogue, a mechanism from a car is suitable Daewoo Nexia. The problem is compounded by oil leakage, which is replaced every 40-50 thousand km, otherwise solid fractions accumulate in the lower part of the gearbox, causing defects in the differential teeth. He is given close attention when buying, since slippage, traction jerks and welded pins of the satellites lead to deformation of the structure. The check is performed by locking the front and spinning the rear wheel, then the engine is turned off and the sound of the gearbox is checked.

In the robotic version of Easytronic, malfunctions of the control system and a low resource of actuators are added to breakdowns, which is 50-60 thousand km, costing 50 thousand rubles. The lack of a retention system on the rise is highlighted, forcing the use of a handbrake.

For comparison, the AF13 4-speed automatic transmission demonstrates good performance and with proper use, the declared 300 thousand km calmly passes. Here, potential problems arise during long runs and races, being associated with the wear of the Forward drum, gas turbine linings, hydraulic contamination. Proper operation of the Opel Corsa guarantees the service life of solenoids and clutches, up to the scheduled repair of the box after 200-250 thousand kilometers. The condition for successful operation is oil renewal, which excludes high temperatures, streaks, disk problems. Upon purchase, testing is performed through an endoscope.

Engine options and their features

The Opel Corsa D modification is equipped with several types of engines combined with a cast-iron body and a small format. The resource of 3-cylinder versions with a volume of 1 liter is 100-120 thousand km, 4-cylinder engines are 1.4 more durable and are capable of traveling 200 thousand km. The most powerful representative of the line is a 120 hp turbo engine. forces, the rest barely reach 90 liters. forces, or (if the equipment includes a phase rotation mechanism) - 101 liters. forces.

The list highlights:

  • 1.2 liter Z10XEP engine, which in turn is divided into Euro-4 and Euro-5 versions, meeting the requirements of the designated standard;
  • Engines Z12XEL (80 hp) and A12XEP (85 hp). Despite the increased performance of the second version, in practice it turned out to be weaker due to EU environmental regulations;
  • Successive generations Z14XEL, A14XEL, A14XEP, 1.4 liter;
  • Turbo engine A14NEL (120 hp) 1.4 liters, corresponding to Euro-5;
  • Variations Z16LET, A16LEL from the Gm Family 1 line, with a volume of 1.6 liters, which are an improved modification of the A14NEL model;
  • A 1.7-liter diesel 8-valve engine has practically not received distribution in Russia, and in Europe it is considered one of the most efficient models.

No significant problems were found behind the units, the average resource is 200-300 thousand kilometers. The vulnerability is fogging due to an obsolete crankcase ventilation mechanism. Weak seals reduce the strength of the thermostat (A14NET, A14NEL with Astra J are a good analogue), contributing to temperature regime 85-90 degrees, which is convenient in summer, but in winter it takes extra time to warm up. Lid expansion tank changes every 5 years, you need to twist it tightly, but not to the extreme. Repair of the entire line of engines is not associated with high costs.

Location of the diagnostic connector OPEL cars CORSA. What equipment is needed and how to choose equipment for self-diagnosis of vehicle errors.

Service modern cars without the possibility of computer diagnostics already unthinkable. The number of electronic systems that control and ensure the operation of various components and assemblies is steadily growing. If earlier the software could detect several dozen errors, then the ECU modern models find hundreds of faults. The self-diagnostic capability provided on some machines is no longer able to cope with the task. For an objective assessment of the state of technology, it is required to get full access to fault codes and software stored in the computer's memory. For this you need:

  1. Know where the vehicle's diagnostic connector is located.
  2. Have an adapter that allows you to connect special equipment to the diagnostic connector.
  3. Get electronic equipment and software that allows you to exchange data with the computer.

These conditions are simply required to be met at service centers involved in the repair and maintenance of machines. As for the prices, they are by no means outrageous. Any car owner can purchase the necessary equipment and learn how to use it if desired.

Location of the diagnostic connector

The corresponding connector for Opel Corsa D and C is located in the passenger compartment. It is not difficult to find it by removing the decorative plug at the bottom of the center console of the instrument panel. Yes, it is under the control unit for the heating and ventilation system. This is not to say that connecting is easy and convenient, but it can be worse. You should be aware that although the connector is in OBD-II format on both models, the data exchange protocols are different.

Most cars foreign production equipped on-board computers or ECU. Opel Corsa is no exception. The electronic brain of this vehicle is responsible for all systems from starting the engine to the speed of rotation of the wheels. However, no matter how perfect the design of electronic control units (ECUs) is, they can still fail.

The situation is not the most pleasant, and in connection with the complexity of the device about self repair there is no need to say (although there are such craftsmen). In today's article, we will talk about what kind of malfunctions can happen to the Opel Corsa ECU, what they can be caused by and how to diagnose them correctly.

ECU Opel Corsa - the main malfunctions and causes of failure

There can be quite a few reasons for the failure of the Opel Corsa ECU, in any case, this does not bode well for the car owner, since this device cannot be repaired. Even at the stations Maintenance it is simply replaced with a new one.

But, be that as it may, it is necessary to understand in great detail what can cause a breakdown. With this knowledge, you will be able to ensure the maximum possible protection of the device from such troubles in the future.

According to auto electricians, most often the computer fails due to overvoltage in the electrical network of the car. The latter, in turn, may occur due to a short circuit in one of the solenoids. However, this is not the only possible reason:

  1. Opel Corsa ECU failure can occur due to any mechanical impact. This can be an accidental impact or very strong vibrations that can cause microcracks in the computer boards and the soldering points of the main contacts.
  2. Overheating of the unit, which most often occurs due to a sharp temperature drop. For example, when you are trying to start the car in severe frost high speed, squeezing the maximum out of the capabilities of the car and all its systems.
  3. Corrosion, which can occur due to changes in air humidity, as well as due to water ingress into the engine compartment of the car.
  4. Moisture ingress directly into the control unit itself due to depressurization of the device.
  5. The intervention of outsiders in the device of electronic systems, as a result of which a violation of their integrity could occur.
  6. If you wanted to “light up” the car without first turning off the engine.
  7. If with car battery removed the terminals without first turning off the engine.
  8. If the terminals were reversed when connecting the battery.
  9. If the starter was turned on, but no power bus was connected to it. However, no matter what causes the malfunction of the computer, any repair work can only be carried out after a full professional diagnosis.

In general, the nature of the device malfunction will tell you about malfunctions in other systems. After all, if they are also not eliminated, then the new control unit will burn out in the same way as the old one. That is why in the event of a computer burnout, it is very important to establish the true cause of the breakdown and immediately eliminate it. But how to determine that the control unit really failed, and not some other system? This can be understood by a number of the very first signs that may appear in such a situation:

  • The presence of obvious physical damage. For example, burnt contacts or conductors.
  • Inoperative signals for controlling the ignition system or fuel pump, idle mechanism and other mechanisms that are under the control of the unit.
  • Lack of indicators from different sensors of control systems.
  • Lack of communication with the diagnostic device.

Regular inspections are required to prevent permanent breakdowns. electronic control engine. In order to save on expensive repairs and complete replacement of elements electronic system management, the audit is carried out at least once a year.

Where is the Opel Corsa ECU located and what does it look like

The electronic control unit (ECU) of the Opel Corsa is located behind the upholstery panel on the right side of the vehicle interior. The ECU is the main element of the fuel injection system. The ECU constantly receives signals from various sensors and controls the most important systems and engine components. In addition, the ECU performs the functions of diagnosing malfunctions of engine systems and components.

If any malfunction is detected, the ECU turns on the “Engine Maintenance Required” indicator, determines and stores the corresponding malfunction code (codes) in memory. This makes it easier to diagnose failures in the future. The vehicle is equipped with an IEFI-6 ECU.

In case of failure, the ECU is replaced as an assembly, since it does not contain repairable elements. Parameters and control algorithms are stored in an erasable programmable read only memory (EPROM). The version of the program recorded in the ROM is indicated by the ECU number, which corresponds to the vehicle identification number.

The ECU supplies power to various sensors and switches with a constant voltage of 5 and 12 V. The electrical circuits of the ECU have a high resistance, therefore, when connecting the power terminals with control lamp the last one is off. A high impedance (10 MΩ) digital voltmeter should be used to accurately measure the supply voltage. The ECU controls the operation of the fuel injectors, idle valve, compressor clutch, etc. using special electronic devices (4-channel drivers) designed to process the output control signals of the ECU.

Self-diagnosis of the computer Opel Corsa

Many drivers believe that only professionals should check the operation of the engine control unit. In fact, almost every “brain” is equipped with a built-in self-diagnosis system at the factory. With its help, it will not be difficult even for an inexperienced driver to identify any malfunctions with their own hands.

The engine control unit is a mini-computer that must perform specialized tasks in real time. The latter can be divided into 3 categories:

  1. processing of signals coming from sensors;
  2. calculation of impacts to control vehicle systems;
  3. adjustment of the operation of the actuators.

To start checking the status of the engine control unit, we need to connect to it. This can be done using a special tester or a laptop. On the latter, a program designed to read diagnostic data must be installed in advance. Modern cars are equipped with various models of ECU.

We will carry out computer diagnostics with our own hands using the free KWP-D program. In addition to the utility, we need an adapter that supports the KWP2000 protocol. We start the diagnostics by connecting the adapter. We insert one end of it into the computer port, and the other end into the laptop. After that, turn on the ignition of the car and run the program. A message should appear on the laptop display stating that the operation to check for errors in the operation of the computer has successfully begun. After that, we will see a table with the most important parameters of the machine.

It is necessary to pay attention to the DTC section, which contains all the errors generated by the engine. If there are any, then go to the "Codes" section, where we will see a decoding of all the existing failures. If you did not find any errors, then the engine is in perfect condition.

Do not ignore other sections of the table. The information they contain is just as important. So, the UACC parameter is responsible for the state of the battery. Normal values ​​for this section are in the range of 14-14.5 V. If your battery voltage is lower, you should carefully check the electrical circuits. Another important parameter is THR, which is responsible for the throttle position. During normal operation on Idling Throttle position sensor will show 0%. Otherwise, you should contact a specialist.

Another important indicator that all drivers are interested in is the QT parameter, which is responsible for the amount of fuel consumption. At idle, the section should contain the numbers 0.6–0.9 l / h. For a more accurate diagnosis, you will need to check the voltage in the car's spark plugs. Checking all these indicators, drivers very often ignore the state of the crankshaft during rotation, for which the LUMS_W section is responsible. If the numbers in it are more than 4 rpm, this is a sign of uneven ignition in the cylinders. It is also worth checking high-voltage wires and candles.

Video: Opel Corsa ECU Diagnostics

How to replace Opel Corsa - step by step instructions

In order to replace the ECU with an Opel Corsa, you must perform the following procedure:

  1. Disconnect the negative battery cable.
  2. Open the panel covering the ECU.
  3. take out the electronic unit control from the socket and disconnect the connectors.
  4. Insert the ECU into the socket by connecting the connectors.
  5. Install the panel.
  6. Connect battery cable.

When replacing the computer, carry out all disassembly and assembly operations in accordance with the instructions above.

Video: Opel Corsa ECU Repair

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