Error "Depollution System Faulty" in Peugeot. Causes. How to fix it?

Why does the engine in a Peugeot 308 run when it's cool and the fan turns on? The check light comes on from time to time. Unstable operation of the Franco-German EP6 gasoline units that are installed on the Peugeot 308 is quite a common occurrence. The engine starts to run rough when it's cool, the fan turns on, the check light glows, in a word, it's not pleasant enough. Peugeot 308 Owners Forum • The fan is working and causing problems. There are plenty of circumstances for such behavior of the motor; we just have to look at them and try to find a solution to restore performance.

Why does the fan turn on when the engine in a Peugeot 308 is running?

Check all possible premises.

Constant turning on of the fan, regardless of the temperature of the coolant in the system, is a sign of almost any problem in the engine.

Even with one spark plug not working, the fan will blow at the highest speed and this is completely normal in this case. Forum Peugeot 308 the engine does not troit, heat is removed and the fan turns on. If a few more problems are added to the fan, then it is possible to localize or at least imagine the cause of the malfunction.

Here are the main reasons for engine vibration ( trips and intermittent operation):

• one of the spark plugs is not working;
• one of the ignition coils does not work;
• misfires in one specific or several cylinders;
• air leakage into the combustion chamber;
• failure of the catalyst, inaccurate removal of the catalyst without updating the ECU firmware;
• incorrect operation of the gas distribution mechanism;
• disgusting fuel.

Perhaps these are the main prerequisites for such behavior of the motor, and they will have to be considered personally.

Why does the “rich mixture” error occur?

“In a Peugeot 308 2010 model year, petrol 1.6, a problem arose: the fan cooling the antifreeze turns on, seemingly chaotically, to “cold”, and the “rich mixture” error occurs. Previously it rarely turned on, now it buzzes almost always. We replaced the circuit on the engine, looked at the electronics - and nothing.”

It would be interesting to know what exactly the electronics engineers were looking at? How many electronics engineers took on the problem? Why didn’t they find anything, since faults don’t appear without a reason?

According to Peugeot electronics specialists who we asked for answers to the question sent, “rich mixture” is too common a mistake. There may be many reasons for it that are not on the surface. As for the relationship between a fan that turns on inappropriately and an error that appears, then, as experts have assured, this is the operating strategy of the electronic engine control unit in the Peugeot 308. In other words, in this car the ECU can respond to the appearance of a “rich mixture” error by turning on the fan.

It was also suggested that there may not be any relationship between the fan and the error. Therefore, it would be interesting to find out whether in the phrase “it used to turn on rarely, now it buzzes almost always”, the word “used to” means winter, and the word “now” means summer? Perhaps the operation of the fan in the current mode is caused by the air conditioner being turned on. When the air conditioner is running, the fan may turn on when the engine is not yet warmed up, since the fan serves not only the radiator of the engine cooling system, but also the radiator of the air conditioner.

It is also possible that improper operation of the fan is caused by a malfunction of the sensor, which is supposed to detect the temperature of the coolant. If the sensor incorrectly estimates the actual temperature state of the engine, it means that the fan control unit is receiving incorrect information.

However, in any case, the question of a rich mixture remains. The quality of the mixture is assessed by the amount of oxygen remaining in the exhaust gases after combustion of the air-fuel mixture in the engine cylinders, using a sensor called a lambda probe. Maybe he is the source of the problem?

However, one can talk endlessly about the reasons for a rich mixture, but this will not solve the problem. We think that the best thing we can recommend is to find a service station that specializes in repairing Peugeot cars. Any malfunction must have a cause and a way to eliminate it, but finding a solution to the problem requires detailed diagnostics of a specific car, and not correspondence consultations.

Sergey BOYARSKIKH ABW.BY

You have questions? We have the answers. Topics that interest you will be expertly commented on by either specialists or our authors - you will see the results on the website abw.by. Send questions to [email protected] and follow the site

Trouble the engine: check the spark plugs and coils

Naturally, when this bunch of malfunctions appears, the best thing to do is to get to the diagnostic center. There, an accurate check will be carried out on diagnostic equipment and errors will be identified (decoding). When it’s cold, the engine cooling fan turns on and the Skoda Octavia works.

It turns on, the engine turns on, the engine shakes very strongly and the fan turns on. However, at the initial stage, you can carry out diagnostics yourself, based on the readings of the on-board computer, and sometimes without them.

The most common cause of an unstable cylinder is a failed coil, spark plug or injector.

Performance of spark plugs and coils

Old spark plugs are one possible cause.

Now it remains to check the performance of the coil and spark plug.

We swap the supposedly non-working coil with the working one and start the engine at idle. The engine shakes and jerks when driving - forum. By removing the signal wires from these coils one by one, we find out whether the assumptions about the non-working coil are confirmed - if a healthy cylinder stops working, the coil is to blame. If the non-working cylinder continues to be silent, the spark plug is to blame. Conclusion - we replace the ignition coil and, if possible, the spark plugs in the cylinders.

Attention: when replacing spark plugs, under no circumstances should you throw the new spark plug into the well, otherwise there is a danger of damaging the gap between the electrodes, and then the new spark plug may not work. Engine ep6 and and fans of Peugeot 308, 308 sw, 308 cc, 408 and even rcz. Peugeot 308 engine starts and the fan turns on....

The fan is on and running. It is carefully lowered into the well and tightened strictly according to the thread with a special key.

If at this stage it was not possible to find a malfunction, we move on to more radical measures.

Misfires on Peugeot 308 - what is it?

It is possible to determine gaps in spark formation without diagnostic equipment. Low beam lamp for a Peugeot 308 - features of product selection and advice on the replacement process, any motorist will agree that it depends on the quality of the light. Here are the main symptoms:

• engine troits;
• the check light is on;
• The fan is constantly running;
• power drops sharply and fuel consumption increases;
• An error message appears.

On the Peugeot 308, error codes for misfire start with P1336 (misfire, cylinder not defined), in order up to P1340 (misfire in the 4th cylinder).

There can be a lot of reasons for the misfire - from low-quality fuel to insufficient compression in a certain cylinder. If we have already replaced the spark plugs and everything is fine with the coils, then we measure the compression. The nominal is 12.6–13 atm in each of the cylinders. If the compression does not correspond to the norm or one of the cylinders has low compression, this will indicate that the compression rings are stuck, there may be air leaks, or a malfunction in the gas distribution mechanism.

Malfunction in the power system

The internal combustion engine power supply system is carried out by supplying fuel to the cylinders from the gas tank using a fuel pump. Depending on the type of power plant (gasoline or diesel), there are slight differences, but the principle of operation and malfunctions are almost the same. In a conventional fuel system - with a fuel pump, pipelines, throttle valve, etc., you can try to figure it out at home.

• Fuel pump malfunction. If the pump does not pump fuel from the gas tank, then you can try to blow out the tube going from the tank to the gas pump.
• Loose connections in the fuel line fittings lead to fuel leakage and air leaks. After tightening the fittings, the fuel leak should stop.
• Poor quality fuel.

Peugeot 308 fuel pump disassembled

Problem with injectors

Errors P1336–P1340 can also occur due to a faulty or clogged injector.

To avoid removing the ramp, you can check the resistance at the injector terminals. Repair and oil change in a Peugeot 308 automatic transmission after the oil has leaked. To do this, you need a multimeter in resistance measurement mode. The nominal resistance of the injector is 12.6–12.8 Ohms.

It only needs to be checked when a malfunction occurs. Engine and repair ep6 1. 6 for Peugeot 308, where to get this sensor.

Crankshaft. If everything is normal with the resistance, all that remains is to wash the injectors - it is better to do this on a washing stand with a special liquid.

Required Tools

In order for the replacement of the oxygen sensor to be successful, it is necessary to prepare the tools that are shown in the table below.

Table - Tools for replacing the oxygen sensor

A special tool is required to remove and install the oxygen sensor. Its cost is very high, so many car owners make the key themselves. In the simplest case, it is enough to cut the open-end wrench “22” in half.

To replace one of the oxygen sensors, you will need access from the bottom of the car. Therefore, to carry out repair work, it is important to have an inspection hole, overpass or lift.

Timing problem

Problems with the gas distribution mechanism are not easy to identify and fix with your own hands.

To do this, it is necessary to remove the cylinder head and carry out visual diagnostics, as well as measure the valve lift height. For example, on an EP6 engine, the valve lift height at idle is 0.4 mm , and at high speeds - about 4 mm . The BMW VVTi system, which is quite difficult to understand, is responsible for changing the phases.

A frequent breakdown on 308s is skewed or falling out of the valve seat , carbon deposits on the valve, which will also cause the above errors and symptoms.

Possible reasons for the Peugeot 308 cooling fan turning on

• A leaky oil filler neck, air entering the intake manifold or crankcase ventilation system, etc. – leakage of any component very often becomes the reason that the fan starts to work constantly
• Problems with the ignition system (coil leaks, faulty spark plugs) are usually accompanied by errors on the dashboard and an electric fan running non-stop.
• The need to flush the injectors and the fuel system as a whole is exactly how the officials advise treating the disease. It helps some, it doesn't help others.
• Malfunctions in the electrical circuit, such as poor ground, short circuit due to antifreeze or other liquid getting into the wiring, failure of the fan controller, as well as problems in the electronic control unit
• Problems in the exhaust system (oxygen sensor, catalyst) can also cause the fan to start turning on constantly. Usually all this is accompanied by increased fuel consumption.

This is only a part of the possible malfunctions in which the fan on the Peugeot 308 unnecessarily operates. We have omitted the obvious problems with the Peugeot cooling system, when the operation of the electric fan is absolutely justified: a failed thermostat, an antifreeze temperature sensor, a lack of coolant, an air lock - in general, everything that causes the unit to actually overheat and require cooling. In such cases, however, the fan does not turn on immediately after starting the engine, but only when the engine boils, so it is quite difficult to confuse these symptoms.

How to fix

Starting system

• The starter does not turn, and the relay does not click - the battery is discharged or completely damaged. If the reason is in the battery, then the rest of the electrics do not work either.
• If, after replacing the battery or recharging it, the starter armature does not rotate, then perhaps the reason for this lies in the burning of the relay contacts; in brushes; or in a short circuit in the windings.
• If both the armature and the starter work, but the flywheel does not, then there may be many symptoms: the connections between the starter and the “bell” are loose; the teeth of the flywheel ring or camshaft drive gear are worn out; the overrunning clutch slips, etc.
• The starter does not turn off after starting the engine - the overrunning clutch or the traction relay switch is faulty. In such cases, stop the engine immediately!
• The starter turns, but the engine does not respond to this - the reason is in the ignition system or in the internal combustion engine power system.

Starter Peugeot 308

Cooling fan operation error in Peugeot 308

Cooling fan error

in
the Peugeot 308
, which the employees of Ilta - the official Peugeot service, .

Good afternoon. An unpleasant situation arose: on a cold car, the cooling fan began to turn on at max. rpm

However, the temperature sensor on the panel works normally. I disassembled the relay block under the bumper, everything is in order, I rang the bell - everything works. Tell me which way to dig...

After you turn off the car, does the fan continue to work or does it only appear when the ignition is on? Also, when the thermal fuse blows, the resistance relay can throw the carloson into emergency mode, and the “STOP” sign on the dashboard should light up.

Malfunctions in the ignition system

All work with the ignition on must be carried out wearing dielectric gloves or using pliers with insulated handles. Explosive wires should be secured especially securely, since if they fall on a ground, body or open area of ​​the body, an electric shock will occur!

• If there is a spark on the wire connecting the coil to the distributor, then we must next look for the cause in the distributor.
• If there are traces of breakdown on the cover or “runner” of the distributor, then the part will have to be replaced.
• If everything is in order with the wires going from the distributor to the spark plugs, then you can try to start the engine. If the engine is silent, then you need to look at the spark plugs.
• After diagnosing the spark plugs, check whether voltage is supplied to the ignition coil. This is easy to do with a multimeter.
• If voltage is not supplied to the coil, the electronics or connections in the low-voltage part of the ignition system are to blame.
• If the distributor contacts have oxidized, you need to carefully clean them with fine-grained sandpaper or a special needle file.
• If after all the above operations the engine still does not start, you will have to check the serviceability of the engine control system.

"Economy Mode Active" message on the Peugeot 308 dashboard display

A common problem with starting the Peugeot 308 engine is in the control system. The fairly common message “Economy mode active” usually indicates a low battery charge, a power outage to power components and assemblies, etc. In general, in this case, the reason may be in the BSI module, failure of which is a very common problem in the Peugeot 308.

The Peugeot 308 engine fan is constantly running - how to treat it?

Obviously, to identify the cause, it is necessary to carry out a number of diagnostic procedures and identify the root cause of why the fan constantly turns on and works. First of all, you need to do computer diagnostics and check the system for errors. Sometimes simply resetting them helps. In any case, during a comprehensive diagnostic process, the cause of the malfunction will become clear, and after it is eliminated, the fan should begin to operate stably and turn on when needed.

Our car service specializes in Peugeot repairs and we are ready in the shortest possible time not only to “diagnose” your Peugeot 308, but also to completely “cure” it. The cost of computer diagnostics at our Borovichok station is 600 rubles. Other useful articles:

Replacing the valve stem seals of the EP6 engine (Peugeot, Citroen)Replacing the timing chain on the Peugeot 308 (EP6) Flushing the radiator of the Peugeot 308 stove Peugeot 308 troit

Error codes - decoding standard words for Peugeot 308

The standard computer on the Peugeot 308 displays all errors in the form of words.

Something has gone wrong in the sensors/ECU...

Most of the "typical phrases" are listed below.

Breakdowns and malfunctions

The word fault means “faulty”. We add fault to the phrase Battery charge and we get “inability to charge the battery.” Next, Engine oil is motor oil. Level too low or level warning messages indicate a leak. Also below the MIN mark there may be an antifreeze level - Cooling circuit level.

So, we have two substrates, oil and antifreeze. Add brake fluid to them - this is Brake fluid. There are two more messages:

• temperature too high, also temperature warning – overheating;
• pressure too low - insufficient pressure.

They are not DOT fluids.

Not everything fits into the rules. Example: Oil pressure, Max coolant temperature. Translation: high oil pressure, radiator overheating.

The phrase “Engine temperature too high” means overheating of the internal combustion engine. Well, “Engine Management System” is an ECU block.

In one word

You don't always need to read the entire message. Sometimes it is enough to know the first word to draw the necessary conclusions:

• Child – all child locks have been enabled;
• Economy – ECO mode enabled;
• Brake pads – replace your brake pads!
• Ice – forecast for the appearance of ice;
• Transponder – the key is faulty or does not fit;
• Handbrake – the handbrake is on;
• Low Fuel - no fuel;
• Puncture - the tire has burst;
• PLIP battery – the battery in the remote control is low;
• Overspeed - do not exceed the speed!
• Under- inflation – tires should be inflated;
• PF clogging – the particulate filter must be replaced (on a diesel engine).

Possible reasons for the Peugeot 308 cooling fan turning on

• A leaky oil filler neck, air entering the intake manifold or crankcase ventilation system, etc. – leakage of any component very often becomes the reason that the fan starts to work constantly
• Problems with the ignition system (coil leaks, faulty spark plugs) are usually accompanied by errors on the dashboard and an electric fan running non-stop.
• The need to flush the injectors and the fuel system as a whole is exactly how the officials advise treating the disease. It helps some, it doesn't help others.
• Malfunctions in the electrical circuit, such as poor ground, short circuit due to antifreeze or other liquid getting into the wiring, failure of the fan controller, as well as problems in the electronic control unit
• Problems in the exhaust system (oxygen sensor, catalyst) can also cause the fan to start turning on constantly. Usually all this is accompanied by increased fuel consumption.

This is only a part of the possible malfunctions in which the fan on the Peugeot 308 unnecessarily operates. We have omitted the obvious problems with the Peugeot cooling system, when the operation of the electric fan is absolutely justified: a failed thermostat, an antifreeze temperature sensor, a lack of coolant, an air lock - in general, everything that causes the unit to actually overheat and require cooling. In such cases, however, the fan does not turn on immediately after starting the engine, but only when the engine boils, so it is quite difficult to confuse these symptoms.

Digital codes

Most often, the timing belt fails in EP6 and EP6DT engines. Codes: P0011 to P0014. Usually you can see code 11 or 14.

• Code P0201, -02, -03, -04 indicates an injector control defect. The first cylinder is the one closest to the gearbox.
• P0565, P0591 - all this applies to cruise control (and only).
• P0597 – P0599. Three fault codes in the thermostat.
• P1336 – break of the DPKV sensor. The engine won't even start.
• P1337-P1340 – cylinders 1-4, misfire.
• P2178 – mixture too rich. Diagnostics begins with checking the lambda probes.
• P0100 – the mass air flow sensor module is faulty (sensor break).

Here are the most common mistakes. But Peugeot has a lot of them:

• P0030 – P0032, -37, -38, -53, -54, P0135, P0141, P2237, -44, -46 – lambda probe heating errors.
• P0117 – P0119 – DTOZH.
• P0121 – P0123, also P2121 – P2123, P2176, P3015 – TPS.
• P0130-P0133, P0138-P0140, P2231, -32, P2271, P3019 – lambda probe signals.
• P0171, -72, P1186, P2177 – P2196 – mixture.
• P0215 – main relay failure.
• P0220 – P0228, P2132 – P2140, P2270 – electronic gas pedal.
• P0230 – P0232 – fuel pump relay.
• P0300, P1378 – misfire/combustion (rare errors).
• P0325 – P0328 – DD.
• P0351 – P0354 – short circuit in coils 1 to 4.
• P0443 – P0445 – adsorber purge valve.
• P0462 – P0464 – FLS.
• P0501 – speed sensor.
• P2176, P3013, -14 – remote sensing learning errors.
• P3011-P3013 – remote control control errors.
• P3010 – the damper is blocked.

The Peugeot 308 engine fan is constantly running - how to treat it?

Obviously, to identify the cause, it is necessary to carry out a number of diagnostic procedures and identify the root cause of why the fan constantly turns on and works. First of all, you need to do computer diagnostics and check the system for errors. Sometimes simply resetting them helps.

In any case, during a comprehensive diagnostic process, the cause of the malfunction will become clear, and after it is eliminated, the fan should begin to operate stably and turn on when needed. Our car service specializes in Peugeot repairs and we are ready in the shortest possible time not only to “diagnose” your Peugeot 308, but also to completely “cure” it. The cost of computer diagnostics at our Borovichok station is 600 rubles. You can get acquainted with the price list for repair work on servicing the Peugeot 308 by following the link.

Sources:

• autoviber.ru
• logan-50.ru
• autohelpp.ru
• www.belsto.by

Errors Peugeot 308, 408, 3008

Errors in Peugeot are quite common, I will try to explain them to you in as much detail as possible.

In addition, you can watch a video about the information content of warning icons on the instrument panel:

• ABS fault - Malfunction of the ABS brake system When such an error occurs, a Peugeot 308, 408 or 3008 car goes into emergency mode, you need to read the error with a computer to understand why it appeared, or it is a faulty ABS sensor or the unit itself, whether it is temporary or not, there have been cases when metal shavings stuck to the magnetic target of the wheel, which led to malfunction of the entire braking system. Although more disastrous failures have occurred, such as the combustion of the ABS block
• Airbag fault - Error in airbags or central unit As a rule, such an error in Peugeot occurs after an accident when the airbags have done their job, or the seat belt pretensioners have fired, or there is also a malfunction in the airbag connection connectors and electrical wiring.
• Antipollution fault - Exhaust purification system error This error is accompanied by the check engine warning light (faulty engine light) coming on; it is necessary to read the errors by the computer and carry out engine diagnostics. The emergency mode of the car is activated.
• Automatic central locking - Central locking in automatic mode When starting to move, the car automatically locks all doors so that they cannot be opened from the outside. It has a positive effect on your own safety, as well as on the Peugeot 308, 408, 3008.
• Automatic gearbox fault - Malfunction of the automatic transmission. It is necessary to read the errors by the computer, the most common error in the AL4 automatic transmission is pressure dispersion in the valve body (accompanied by shocks when switching). Peugeot goes into emergency mode and the valve body valves need to be replaced.
• Automatic wiper - Windshield wipers in automatic mode - The windshield wipers will operate in automatic mode based on the readings of the rain sensor on the windshield.
• Battery charge fault - The battery is not charging. There may be an error in the charge unit on the battery, the generator has failed or the generator belt has broken.
• Brake fluid level - There is no brake fluid or the level is low. Add brake fluid; if the error does not disappear, electrical diagnostics are required. Check brake pad wear.
• Brake fluid low - Brake fluid level is at a critically low level. Add brake fluid to the barrel.
• Brake pads worn - Wear of the brake pads It is necessary to replace the front brake pads; for the rear brake pads such information is not displayed on the display.
• Catalitic Converter fault - Exhaust system catalyst error It is necessary to read the fault codes, if this error is one without other associated ones, then most likely the catalyst has become unusable and needs to be replaced, if there is a second error on the lower oxygen sensor (Lambda probe), then most likely the culprit he himself is faulty.
• Child safety status - Child lock installed Standard informative warning
• Coolant level warning - Coolant level is at a minimum (or absent) You should add coolant to the expansion tank; if the malfunction remains, then, as practice shows, you should replace the coolant level sensor.
• Cooling circuit level low - Low level of coolant (antifreeze) Add fluid. The level sensor may also be faulty.
• Top up coolant level - Replenish the coolant level