Error p2188 viburnum 8 valves

Trouble Code P2188 – Idle Too Rich (Bank 1)

This diagnostic trouble code (DTC) is a generic powertrain code. Trouble code P2188 is considered a common code because it applies to all makes and models of vehicles. Although the specific repair steps may vary slightly depending on the model.

This code mainly concerns the value provided by the air/fuel ratio sensor, more commonly called the oxygen sensor (located in the exhaust). Which helps the vehicle's PCM (Powertrain Control Module) to control the amount of fuel injected into the engine.

Specifically, the PCM detects a rich mixture, which means there is too little air in the air/fuel ratio. This code is set for bank 1, which is the cylinder bank that includes cylinder number 1. This could be a mechanical or electrical fault, depending on the vehicle manufacturer and fuel system.

Troubleshooting steps may vary depending on the manufacturer, fuel system type, mass air flow (MAF) sensor type, and wire colors. And also a type of air/fuel/oxygen ratio sensor (AFR/O₂).

Errors VAZ 2114

Greetings ladies and gentlemen! At least, I really want to believe that among you there are representatives of the fair sex! If you are the happy owner of a modern classic in the form of a VAZ 2114 car, then sooner or later you will have to deal with errors in the ECU control system. Helping to understand these combinations unknown to the average driver is the main goal of this article. Errors in the VAZ 2114, as in many other vehicles, are the main means of informing the driver about a malfunction of any mechanism, unit or component of the automotive system.

Reasons for the appearance of symptoms of error P2135 on the Lada Granta

On different cars, with different numbers of sensors and different control units, the reasons may be slightly different. Although in almost any case, an intelligent diagnostician will first of all consider this number of reasons:

Electronic throttle valve circuit

In relation to the Lada Granta, we can safely consider problems with angle sensors or damage to the ECU, oxidation of contacts, as well as failures in the module firmware. However, if error P2135 on a Lada Granta appears in the company of codes P012%, P022%, P1538, where % is any number, you can safely blame the throttle assembly.

On which cars is this problem most common?

The problem with code P2188 can occur on different machines, but there are always statistics on which brands this error occurs more often. Here is a list of some of them:

Audi (Audi a4)
BMW
Cadillac
Chery (Chery Tiggo, Fora)
Chevrolet (Chevrolet Captiva, Cruz)
Dodge
Ford (Ford Mondeo, Escape)
Geely (Gili Emgrand)
Hyundai (Hyundai Santa Fe, Solaris, Sonata, Elantra, ix35)
Infiniti
Kia (Kia Rio, Sid, Cerato)
Lifan (Lifan x60)
Mazda (Mazda 3, Mazda 6, Mazda cx7, MPS)
Mercedes
Mini (Mini Cooper)
Opel
Pontiac
Skoda (Skoda Octavia)
Smart
Ssangyong (Sangyong Aktion)
Suzuki
Volkswagen (Volkswagen Golf, Jetta, Passat, Tiguan)
Volvo (Volvo xc70, xc90)
Vortex (Estina's Vortex)
VAZ 2107, 2114, 2115
Lada Granta, Kalina, Niva, Priora
UAZ Bukhanka, Patriot, Hunter

With fault code P2188, you can sometimes encounter other errors. The most common ones are: P0131, P0136, P0172, P0642, P2178, P2190, P2191.

How to Troubleshoot or Reset Trouble Code P2188

To troubleshoot and correct trouble code P2188, check the air/fuel ratio/oxygen sensor (AFR/O₂). If it consistently indicates that the engine is running rich, identify all the options that could cause the engine to run rich. These include:

All other codes must be diagnosed before the fault can be determined. Because problems that cause other codes to output can also cause this code to install.

What does the error consist of?

In Chevrolet cars, error codes can be two or five digits. The type of combination depends on the diagnostic method - in the first case, a self-test is performed, in the second, a check is performed using a computer or a diagnostic scanner.

In five-digit combinations, the first character determines whether the error belongs to the system with which the problem is associated:

The second character in the code means:

The third character of the error code indicates the type of malfunction:

The fourth and fifth characters indicate the serial number of the error.

Site about off-road vehicles, SUVs, off-road vehicles

The electronic control unit of the ZMZ-409 UAZ Hunter engine has a built-in controller on-board self-diagnosis system, which has the ability to diagnose sensors and actuators and is capable of identifying most faults in the fuel injection system, as well as identifying faults in the controller itself.

The on-board self-diagnosis system clearly shows visual alerts about its operation using the orange engine malfunction warning lamp located on the dashboard warning lamp block.

On-board self-diagnosis system of the ZMZ-409 engine controller and its operating principle.

Under normal conditions, with the ignition on and the engine not running, the warning lamp turns on for 0.6 - 1 second and goes out if the self-diagnosis system has not detected any faults in the electrical circuits of the engine control system.

If any malfunction occurs before starting or during engine operation, the controller (ECU) enters its code into its RAM and signals this by turning on a lamp, which lights up when a malfunction occurs and remains on continuously until it is eliminated.

The detection of a malfunction by the on-board self-diagnosis system and, accordingly, the warning lamp turning on does not mean that the car’s engine must be immediately turned off. In most cases, the electronic control unit, if possible, immediately forcibly switches the engine to one of the reserve operating modes prescribed in it, which it considers as close as possible to normal in a given situation.

However, operating the engine in such reserve modes, even short-term, can lead to increased fuel consumption, exhaust toxicity and deterioration in vehicle performance. In addition, there are some restrictions when engine operation is allowed only after the malfunction has been completely eliminated.

For cars with a ZMZ-409 engine of environmental class 2.

In case of a malfunction caused by misfires, interruptions in engine operation and jerking when the car is moving, in order to prevent failure of the exhaust gas converter, it is necessary to quickly, within no more than 30 seconds, stop the car and turn off the engine.

For cars with a ZMZ-409 engine of environmental class 3.

If there is a malfunction caused by a misfire, the engine warning light starts flashing. In order to prevent failure of the exhaust gas converter, it is necessary to reduce the engine speed to 2500 rpm, the vehicle speed to no more than 50 km/h, and drive to a service station. The control lamp will light up continuously when the permissible temperature of the neutralizer is exceeded. In this case, it is possible to turn off one or two engine injectors.

Choosing a car service for car diagnostics

Nowadays, information about car diagnostics using electronic systems has become very accessible on the Internet. As a result, many private workshops and individual craftsmen have appeared on the market offering car diagnostic services based on the analysis of ECU codes.

However, most of these diagnosticians do not have a special certificate from the manufacturer allowing them to carry out such work. As a result, the car owner may receive a damaged ECU or diagnostic system controllers.

In connection with this circumstance, it is necessary at a car service center, before starting diagnostics, to require documents confirming the qualifications of the technician responsible for such operations.

In addition, it is also necessary to have a special stand, and not just one laptop with a special program, since only at the stand can you read all the information from the sensors and get a comprehensive picture of the car’s condition.

It is not recommended to contact organizations that offer to “flash” the on-board computer and car controllers in order to change certain characteristics of the car.

Diagnosis and problem solving

The first step is always to check the technical service bulletins (TSB) for your specific vehicle. Your problem may already be known with a known fix released by the manufacturer. This can save you time and money during diagnosis.

Next, locate the air/fuel ratio/oxygen sensor and mass air flow sensor on your specific vehicle. Once found, visually inspect the connectors and wiring. Look for scuffs, scuffs, exposed wires, burn marks, or melted plastic.

Disconnect the connectors and carefully inspect the terminals inside the connectors. See if they look rusty, burnt, or otherwise damaged. You can buy electrical contact cleaner at any parts store if you need to clean the terminals.

If this is not possible, use rubbing alcohol and a light plastic bristle brush to clean them. After that, let them air dry, take dielectric grease and coat the contacts to protect them.

If you have an OBD2 scanner, clear the diagnostic trouble codes from memory and see if the code returns. If it doesn't, it's likely a connection issue.

Sensor check

If P2188 returns, you will need to check the MAF sensor voltage signal on the PCM. Monitor the MAF sensor voltage on a scan tool.

If a scan tool is not available, check the signal from the MAF sensor using a digital volt-ohmmeter. With the sensor connected, the red wire of the voltmeter should be connected to the signal wire of the mass air flow sensor. And the black wire of the voltmeter must be grounded, that is, go to ground.

Start the engine and monitor the input signal from the mass air flow sensor. As engine speed increases, the mass air flow sensor signal should increase.

Check the manufacturer's specifications as there may be a chart telling you what the voltage should be at a given RPM. If this fails, replace the MAF sensor and try again.

P0171 Possible solutions

There are many different solutions for the P0171 code. We will describe them, starting with the most common. Diagnostic tools that can help you troubleshoot problems are described in the diagnostics section below.

Replace faulty vacuum hoses or gaskets around the intake manifold.
Repair other intake leaks.
Replace the PCV valve.
Replace the fuel pump/fuel filter/fuel pressure regulator or repair the wires.
Replace EVAP valve.
Replace oxygen sensors.
Replace the EGR valve.
Replace the mass air flow sensor (MAP/MAF).
Repair exhaust leak.
Replace the coolant temperature sensor.
Repair of faulty wires.
Replace the ECU (ECM/PCM, rare).

Trouble P2135 and Engine Control Module

Where is the ECU located on the Lada Granta? That's right, at the feet of the front passenger. Where does water accumulate the most in winter, autumn and spring? That's right, at the feet of the front passenger.

Most of the water in the cabin can accumulate precisely at the location of the ECU.

In addition, water can enter the Granta's interior in other ways. Using the Lada Vesta as an example, we recently examined this problem.

If the engineers could not provide a safer place for the ECU, then they could at least protect the control unit from water. But they didn't do it. Therefore, a common problem in many Grants is the incorrect operation of the electronic control unit due to short circuits caused by corrosion and salts.

If we feel that the carpets under the front passenger are saturated with moisture, most likely the ECU has begun to suffer from water. We remove the terminal from the battery, the glove compartment cover and take out the control module.

If there is even a drop of moisture on it, we disassemble the case and thoroughly dry the board with a hair dryer at low temperature.

When the board is dry, we assemble the control module with sealant and think about protecting the interior from water ingress or moving the electronic control unit to a safer place.

Lamps for increased visual comfort

The DRL lamp of the Lada Granta Deluxe is an ordinary halogen low beam incandescent lamp, shining white. The main disadvantage is reduced visibility in rainy weather due to the fact that white light produces much more glare from wet surfaces and raindrops than yellow light.

The following brands of high-comfort halogen lamps are most often found on sale: OSRAM, General Electric, Mayak, Philips, Narva, IPF, Hella, etc. The manufacturer recommends choosing OSRAM H4 models in Standard and Light Day modifications. The first fully complies with all norms and legal requirements for safety, illumination, geometry and accuracy of the cut-off line. Has the highest luminous intensity value. The second model differs from the first in having a significantly longer service life. In terms of luminous intensity it is slightly inferior to the Standard modification.

Replacement of low beam lamps is carried out as follows. Clear access to the left headlight unit. To do this, release the Lada air filter housing from all fasteners, disconnect the wiring harness and sensor. Then slide the filter housing up and to the left. To gain access to the right headlight, you need to remove the power unit cover. To do this, unscrew the oil filler cap and then the 4 mounting bolts. After this, pull the cover up and unclip it.

Please note: when replacing halogen lamps, it is not recommended to touch the bulbs with your fingers.

The fact is that fingerprints of sweat and grease on the bulbs of lighting devices reduce their service life many times over. Therefore, it is necessary to work in clean cotton gloves without rubber coating. Wipe the flasks themselves with alcohol wipes before installation.

Diagnostics using the dashboard

It is advisable for the owner of the Russian model we are considering to remember all the error codes that may periodically occur in the system. In addition, it is recommended that you learn how to diagnose the dashboard yourself. It is designed to reflect error codes that occur in the electronic components of the Lada Kalina.

To start the diagnostic process, you will need to press a button that records the daily mileage. While holding it, turn on the ignition by turning the appropriate key. If this manipulation is performed correctly, the arrows on the scales of the speedometer, tachometer and auxiliary indicators will begin to move along a circular path, moving from the initial to the final position.

Upon completion of this movement of the arrows, the owner will need to switch the screen to another mode. This will be done by a special button located on the wiper switch under the steering wheel. Pressing displays a picture with performance indicators of a wide range of devices controlled by the ECU. The software version of the complex is also displayed here - self-diagnosis.

After updating the information three times, the error codes themselves appear on the device, expressed in digital form.

Let's look at the list of errors by number:

The “E” symbol deserves special attention, which indicates the presence of errors contained in the “EEPROM”. Each malfunction, including error 4 and error 8, requires attention from the car owner.

How does the self-diagnosis complex work?

This system is self-regulated in automatic mode. Its structural composition includes several electronic devices. Based on sensor impulses, a variety of information flows into the ECU memory, among which there are faults. They are presented in the form of designated fault codes. Car manufacturers do not support the idea that owners are inclined to independently maintain electronic systems of cars, therefore they tend not to disclose the meaning of the codes. Here we can see the noble motive of the developers, because they understand that in this way scammers can take advantage of the situation and change the settings of the electronic module, for example, reduce the odometer readings before selling the Lada Kalina car, etc.

This situation forces the manufacturer and dealers to persuade owners to service the self-diagnosis system in specialized services.

A particularly important component of this system is the on-board controller. With its help, information collected from sensors is processed and displayed on the display. Lada Kalina does not have such a device, which deprives the owner of the ability to visually read information regarding breakdowns. This is where scanning equipment comes to the rescue. Thanks to it, self-diagnosis occurs.

P2188 error UAZ Patriot

Ulyanovsk-made cars are equipped with an ECU from the factory, which allows you to calculate various faults and display them on the on-board computer display. But UAZ Patriot SUVs are not equipped with them from the factory, but you can add this device to your car right in the showroom when purchasing a car. For the UAZ Patriot SUV, two types of on-board computers are available from Prestige and Multitronics.

The Prestige U12 model is produced directly for UAZ vehicles, so installing it yourself is not very difficult. You can find out how to do this yourself in the article about installing an on-board computer. In this material we will look at the main types of ECU errors of the UAZ Patriot SUV, which are displayed on the display of the on-board computer U12 or an analogue.

Symptoms of malfunction

The main driver symptom of P0172 is the MIL (Malfunction Indicator Light). It is also called Check engine or simply “check light”.

They can also appear as:

The severity of the P0172 code is higher than average, so it is recommended to fix the problem as soon as possible. Most likely, with this problem, you will be able to continue your trip, but fuel consumption will increase. And due to the low O₂ content and poor combustion of the fuel, problems with the catalyst are possible in the future.

Purpose of the on-board computer

An on-board computer is a device through which information received from the vehicle's ECU is displayed on the device's display in a form understandable to humans. Thus, we can say that such devices of the Prestige U12 brand are a universal auxiliary device that helps to read all useful information about the technical condition of the car and more.

Using the on-board computer, you can find out such important parameters as the number of liters of fuel in the tank, crankshaft rotation speed and many other information. But, in addition, Prestige U12, which is installed on the UAZ Patriot independently, allows you to read all errors in the electronic and mechanical systems of the car. If there is no on-board computer, such errors are displayed on the instrument panel and are indicated by the Check Engine indicator. In this case, the car owner should rush to computer diagnostics to clarify the malfunction and eliminate it. With the advent of the Prestige U12 on-board computer on the UAZ Patriot, there is no need to visit a service station where computer diagnostics are carried out. All codes are displayed on the display in digital format, and the owner will need to find out the decoding of this error and, if possible, eliminate it. Although in most cases the codes that arise are not significant, if they are not cleared, some components of the car may not function.

In this material we will look at the main types of errors displayed on the monitor of the Prestige U12 on-board computer and find out how to eliminate them.

Error codes

To find out the decoding of the codes that were detected by the ECU and displayed on the monitor, you need to go to the “TO” menu and select the section called “Errors/Diagnostics”. After going to this section, you can read error codes, view their number, reset and other types of manipulations.

Let's look at the main types of errors that the on-board computer display receives from the ECU.

Code 04

The category of errors related to series 04 imply a malfunction of the following systems and units:

These codes from category 04 are the most common, most of which require physical elimination. Error 0420 can be resolved by resetting it in the corresponding menu of the on-board computer. After the reset, error 0420 will not appear on the screen of the Prestige U12 on-board computer, but the catalyst will no longer cope with its original functions.

Codes from series 03 indicate problems in the ignition system of the UAZ Patriot. The following error codes from this series are encountered:

The most likely culprit for error 0340

In rare cases, code 0340 indicates a sensor failure, but if after cleaning the contacts the error does not disappear, then the device should be replaced with a new one.

Series 01 codes

Codes from the 01 series occur due to a malfunction of the following sensors: coolant temperature sensor, DTV, mass air flow sensor and others. More than ever, the Prestige on-board computer often displays error p0106 on the screen. This code p0106 occurs very often, so special attention should be paid to its characteristics and how to eliminate it.

So, when the on-board computer shows error p0106, then, most likely, the driver discovers that the car is no longer driving the same way as before. The essence of this p0106 value is the malfunction of the air pressure sensor in the intake manifold. The reasons for this error to appear are as follows:

Code 0704

The appearance of an error on the monitor of the on-board computer type p 0704 of the UAZ Patriot SUV indicates problems with the clutch switch. What does this mean? This means that there are problems with the clutch pedal limit switch, as a result of which the ECU reads the error and transmits it to the display. The causes of malfunction of the clutch pedal limit switch are few and often involve a weakening of the tension spring. To eliminate the malfunction, you should find the limit switch located on the clutch pedal and identify the exact reason for the lack of signal from the product.

The trailer looks like this:

Code c3472

Error c3472 on the UAZ Patriot SUV occurs due to a malfunction of the camshaft position sensor. To eliminate the malfunction, it is necessary to check the timing of the timing, the integrity of the suitable wires, and if this does not help, then replace the camshaft and crankshaft sensors with new ones, after which the code should disappear.

At this stage, we should summarize and say that if you have installed an on-board computer on your car, then you should also take care of printing out on paper all the popular error codes. After all, now you will have the opportunity to independently identify errors and find out how to solve them, even on the road, without resorting to the help of a car service.

Author Guest _A_V_P_, November 19, 2010 in Domestic auto industry GAZ, UAZ

Lada Vesta errors decoding and description

The following are the most popular Vesta 1.8 and 1.6 errors associated with power plant components (P):

0030/31/32 – violation of the integrity of the sensor circuit installed in front of the neutralizer with a possible short circuit to the body or wiring;
0036-38 – similar for DK 2;
0106-108 – erroneous data received from the pressure sensor in the intake manifold with an open circuit or short circuit;
0111-113 – the same block responsible for the intake air temperature, signal failure;
0116-118 – malfunction of the antifreeze temperature sensor;
0122-123 – the wiring of the throttle position sensor is faulty, the element itself may be damaged;
0130 – oxygen sensor has failed;
0131-134 – DK1 detected incorrect signal transmission to the on-board computer;
0135 – the part described above has failed;
0136 – DK2 is out of order;
0137/138/140 – breakdown of the DK2 highway;
0141 – malfunction of heater DK2;
0171/172 – excessively lean or enriched fuel mixture;
0201-204 – the injector control lines are out of order, respectively for each cylinder;
0217 – excessive heating of the cooling system, you need to stop and wait until the engine cools down;
0222/0223 – TPS B lines, produce a high or low signal;
0261/264/267/270 – short circuit to the body of the injector circuits for each cylinder in series;
0262/265/268/271 – similarly with touching other electrical wiring elements;
0300 - the on-board computer has detected multiple misfires - the fuel supply to the engine is turned off;
0301-304 – misfires in a single cylinder sequentially, the injectors of the corresponding cylinders are turned off;
0327/328 – the fuel mixture knock sensor sends incorrect signals;
0335/336 – DPKV circuit is faulty or the sensor itself is broken;
0340/342/343 – DPRV has failed or faults have been detected in its line;
0351-354 – open circuit for controlling the injector drivers for each cylinder in series;
0363 - error p0363 Vesta indicates that there are misfires, which provokes a cutoff of the combustible mixture supply;
0422 - the neutralizer is out of order or clogged - a line replacement of the unit is required;
0441 – incorrect oxygen flow through the CPA was detected;
0443/444/458/459 – there is a problem in the canister purge valve circuit; you need to check the entire line;
0480/481 – error p0480 Vesta and its analogue indicate an open circuit of fan relay 1/2;
0504 – violation of synchronization of brake pedal signals;
0513 – incorrect immobilizer key;
0522-523 - error p0523 Vesta and others like it say that the oil pressure sensor is giving an incorrect signal;
0560-563 – disturbances in the stability of the vehicle’s on-board network;
0601-604 – errors in the ECM;
0606 – processor malfunction;
0627-629 – failure of the main fuel pump control relay;
062F – EEPROM error;
0641-643 – there are problems within the sensor power supply circuit;
0645-647 – the air conditioner clutch control relay is out of order or there are wiring breaks;
0660-662 – the wiring of the valves of the intake length control system is shorted or broken;
691/692 – short circuit to the body/on-board circuit RV1;
693/694 – similar for RV2;
1301-1304 - error 1301 Vesta and the next three points indicate that critical misfires were detected, damaging the converter, for each cylinder sequentially;
1335 – the sensor finds the throttle position outside the permissible limit;
1336 – similarly for the specified element indicates a TPS mismatch;
1388 – similar desynchronization of the gas pedal;
1390/1391 – the throttle valve actuator is faulty or does not work correctly;
1545 – the position of the throttle valve on the instruments does not correspond to the actual location;
1558 – the DZ spring burst or flew off;
1559 – PDZ is outside the permissible limit at idle speed;
1564 – on-board PDZ systems interruption of zero position adaptation;
1570 – the immobilizer control circuit has failed or is damaged;
1578/1579 – problems in the remote control drive control system;
1602 – voltage to the ECM is lost;
1640 – there is an error in the EEPROM program for the ECM;
2100-2103 – problems with the electric throttle drive;
2105 - error p2105 Lada Vesta indicates incorrect operation of the spark plugs, usually happens after replacing parts;
2122/2123 – the signal level of the gas pedal sensor A is too low or high;
2127/2128 – similar for sensor B;
2135/2138 – mismatch between sensors A and B of the throttle/gas pedal position;
2176 – adaptation of the throttle valve drive has not been carried out;
2187/2188 – excessively lean/rich air-fuel mixture at idle speed;
2270/2271 – no response from DK2 to depletion or enrichment of the fuel mixture;
2301/2304/2307/2310 – closing the ignition coils for all cylinders in series with contact with the on-board wiring sections.