P202e mercedes

We recommend Torque Pro. Typically, this code means that the reductant injector is not performing as expected, and that it is injecting either too little or too much reductant, or that it is not injecting reductant into the exhaust system at all due to a problem in its control circuit, as opposed to meaning that the injector itself has failed.

Note though that if the reductant freezes when the vehicle is parked, for instance overnight, engine operation and starting times will generally not be affected in the time it takes for the heating system to thaw the frozen reductant fluid. The purpose of the reductant injection system on modern vehicles is to introduce metered amounts of a gaseous or liquid reductant to reduce harmful exhaust emissions beyond the reductions that are possible with catalytic converters and diesel particulate filters alone.

Note that on gasoline engines, the reductant is introduced into the catalytic converter, while on diesel engines the reductant is most commonly introduced into the diesel particulate filter.

Path da bhog invitation in punjabi

In terms of operation, the PCM depends mainly on input data from the exhaust gas temperature and pressure sensors to determine when to introduce a metered amount of reductant fluid to the exhaust stream. Early SCR systems and therefore the most basic systems relied on a basic pressure differential between the exhaust stream and the reductant fluid supply system to determine the amount and timing of fluid to be introduced.

The practical advantage of this arrangement is that when the engine is started and the reductant pump is disabled, the actual exhaust pressure should agree with the output signal voltage of the exhaust pressure sensor.

If there is any disagreement between the actual exhaust pressure and the output of the pressure sensor signal voltage, the disagreement almost always indicates a defective sensor, as opposed to a general malfunction in the electrical control circuit s of the reductant injection system.

p202e mercedes

Moreover, modern SCR systems have the ability to adjust the timing and duration of reductant injection in order to compensate for small deviations between the actual exhaust pressure and the signal voltage generated by the exhaust pressure sensor sthus improving reductant injection control.

In practical terms, this means that the PCM and other control modules can correct for limited amounts of sensor degradation, and should a level of pressure sensor degradation occur that exceeds a predefined level or threshold, the PCM and other control modules in the reductant injection system can still control the system completely independently of the exhaust pressure sensor s.

Note that while an unexpectedly high or low voltage in the control circuit s of the reductant injection system will cause the PCM to set code PE on the first failure on most applications, the fault needs to occur several times on some other applications before the PCM will illuminate warning light at the same time it sets code PE.

The image above shows a simplified schematic diagram of a typical modern SCR system fitted to the exhaust system of a passenger vehicle, with the reductant injector shown here circled in red.

Note that on almost all modern applications, the reductant injector is located upstream of the catalytic converter, while exhaust gas temperature and other sensors are typically located downstream of the catalytic converter. While this makes it relatively easy to locate and identify the reductant injector, it is nevertheless always important to refer to the manual for the affected application to locate and identify parts, components, and particularly sensors correctly.

Alsa linux tutorial

Failure to do this will almost certainly result in confusion, wasted time, misdiagnoses, and the distinct possibility that expensive parts and components may be replaced unnecessarily. Note that since code PE specifically refers to abnormally high or low voltages in the control circuit s of the reductant injector on bank 1, the probable causes of code PE are far more likely to involve failures and malfunctions only in this particular circuit, rather than in any other parts, components, circuits, or subsystems elsewhere in the reductant injection system.

This site uses Akismet to reduce spam. Learn how your comment data is processed. Skip to content.

Mercedes-Benz Sprinter P20BE Engine Trouble Code

Notify of. Previous Post Previous P — Particulate trap, bank 2 — efficiency below threshold.Pull over, retighten it, and take a look at the cap to see if it has any cracks in it. Continue driving and see if the check engine light turns off.

All you need to do is take the old one off and screw on the new one. If you've already made it to the store, you might as well just replace it. While not car-threatening, it's good to take care of this right away to improve gas mileage. So you should chech it on our car models. The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. This causes the ignition coil to provide a spark and the injector to inject fuel into each cylinder at the right time.

If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.

Code Search Please fill the "Code Box" to find engine fault code. Ways to read engine trouble codes. Ways to clear check engine light on car panel. Check Engine Light Dictionary Ways to clear check engine light on car panel.

Main engine trouble code archive on Web. Copyright EngineTroubleCode. Check engine light comes on Engine stalling or misfiring Engine performance issues Car not starting. If one of these reasons for PE code is occuring now you should check PE repair processes. Now don't ask yourself; What should you do with PE code?

Traguardo in francese

The solution is here :.This car have no acceleration more than rpm's. Throttle body and throttle pedal has been replaced with used. Same problem continued! Any advice please. Do you. P - oxides of nitrogen trap efficiency below threshold bank 2. Possible causes: faulty sensor or solenoid sensor or solenoid harness is open or shorted sensor or solenoid circuit.

Mercedes-Benz C+class P202E Engine Trouble Code

Software update. Damage catalytic converter catalytic converter improper operation. Pe is a fault code for the throttle actuator. You will need the star diagnosis tester to run the test procedure. This should be looked at by a dealer or a specialist Mercedes Benz work shop with the appropriate test equipment.

Was this answer. Do you think it is because of manifold and vacuum leaking?

Mercedes Benz Throttle Flap P2004

It would not hurt to investigate that potability, but it would only be a stab in the dark. The system need to be diagnosed with a correct scan tool to be sure.

A live data read with a conventional scanner will show if the O2 sensor is working and generation a voltage with in operating range. But, the second problem will require the factory test equipment to diagnose correctly. ECU has been replaced with used one and it's okay now.

Thanks for every body. Good to hear, please use 2CarPros anytime we are here to help. Please login or register to post a reply. Sponsored links. Ask a Car Question. It's Free!Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type.

This sensor is a kind of potentiometer which transforms the throttle position into output voltage, and emits the voltage signal to the Engine Control Module ECM. In addition, the sensor detects the opening and closing speed of the throttle valve and feeds the voltage signal to the ECM.

Idle position of the throttle valve is determined by the ECM receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut.

p202e mercedes

On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control. Get Access to Factory Service Manuals. Need more help? Get the P Mercedes-benz code diagnosed by a professional: Find a repair shop in your area.

Related Information. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P Mercedes-benz code? Have you replaced any parts? Any information is appreciated. Repair Importance Level: 3. Why is the Engine Light ON?

Cpu hdl

Home - About AutoCodes. Posted and Edit by AutoCodes.The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off. So you should chech it on our car models. The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing.

This causes the ignition coil to provide a spark and the injector to inject fuel into each cylinder at the right time.

If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver.

The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.

P2047 OBD-II Trouble Code: Reductant Injector Circuit/Open Bank 1 Unit 1

Code Search Please fill the "Code Box" to find engine fault code. Ways to read engine trouble codes. Ways to clear check engine light on car panel. Check Engine Light Dictionary Ways to clear check engine light on car panel. Main engine trouble code archive on Web. Copyright EngineTroubleCode. Check engine light comes on Engine stalling or misfiring Engine performance issues Car not starting.

Now don't ask yourself; What should you do with P20BE code? The solution is here :.This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic.

The P code is a general OBD2 trouble code that points to a fault within the reductant injector circuit. The P code means a fault is present in the reductant injection valve circuit, bank 1 unit 1. The reductant injector is used to reduce emissions gases exiting the exhaust by injecting either air or chemicals depending on the usage and vehicle.

When the ECU detects the fault in the reductant injector circuit, it will set the P code and the Check Engine Light will be displayed on the dashboard. The Check Engine Light is the most common symptom of the P code. In rare cases, the driver may notice black smoke under heavy acceleration. Using this step by step diagnostic procedure technicians may successfully diagnose the P code:. A visual inspection will be done looking for signs of exhaust leaks or damaged wiring for either the sensor itself of the harness.

Commonly an exhaust leaks is often overlooked as the cause of the P code. When an exhaust leak is present it causes air to enter the exhaust and this changes the readings of the oxygen sensors and the exhaust gas temperature readings. The P code will generally not have any drivability concerns that would prevent the vehicle from being driven. This code will cause the vehicle to fail emissions testing and may cause more exhaust emissions to exit the exhaust.

Exhaust leaks can cause strange symptoms in modern cars. A easy way to find if the exhaust is leaking is to inspect the exhaust system while the vehicle is running.

p202e mercedes

Caution should be taken when doing this as the exhaust can easily burn you. Exhaust leaks can have a whistling sound or can be felt. In some cases the exhaust leak will leave a black sooty mark on the exhaust pipe right where the leak is making it very easy to find.

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle.

Teething cheek rash

Get a quote and book an appointment online or speak to a service advisor at With YourMechanic you can skip the auto shop altogether. They send certified and screened mechanics straight to your door and enable you to save big on car repair and maintenance. Cost of diagnosing the P code.

No more waiting rooms! Our mechanics will come to you to diagnose and fix the P code. Recent Check Engine Light is on Inspection reviews. Excellent Rating. Average Rating 4. Number of Reviews 5, Rating Summary.Meaning of PE engine trouble code is a kind of powertrain trouble code and when your car's 'PE Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach.

The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap.

But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off. Disconnected, dirty or fouled spark plugs are common causes for engines that won't start.

Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.

Is the fuel pump sometimes not priming when you turn the key to ON II?

P202E - Reductant Injection Valve Circuit Range/Performance Bank 1 Unit 1

Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. The mechanical timing is also something that you should check, as we mentioned above. PE DTCs may also be triggered by faults earlier down the line. For example, a dirty MAF sensor might be causing the car to overcompensate in its fuel-trim adjustments. As a result, oxygen sensors are likely to report fuel mixture problems. Engine trouble codes resource center for all car models.

Code Search Please fill the "Code Box" to find engine fault code.

Shields mri weymouth phone

Select Abadal Schneider Th. Clubsport Yes! Ways to read engine trouble codes. Ways to clear check engine light on car panel.

Check Engine Light Dictionary Ways to clear check engine light on car panel.

p202e mercedes

PE Engine Trouble Code Meaning of PE engine trouble code is a kind of powertrain trouble code and when your car's 'PE Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach.

PE Fault Symptoms : Check engine light comes on Engine stalling or misfiring Engine performance issues Car not starting If one of these reasons for PE code is occuring now you should check PE repair processes. Now don't ask yourself; What should you do with PE code?

The solution is here : PE Possible Solution: Disconnected, dirty or fouled spark plugs are common causes for engines that won't start.

Check engine light comes on Engine stalling or misfiring Engine performance issues Car not starting. If one of these reasons for PE code is occuring now you should check PE repair processes. The solution is here :.