Error Code P021E: What It Means & What To Do?

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The OBD code P021E decreased engine performance can be defined as a Cylinder 11 Injection Timing. The unintended fuel injection can be detected by the powertrain control module which occurs by monitoring fuel rail pressure as well as engine speed. Now if this condition arises, then the car engine would die and won’t start.

 

The exhaust smoke would be emitted as well as no fuel rail pressure would be developed during cranking. Cranking would then activate the detected trouble code if this condition exists. If the car engine is operated for an extended period of time, then damage can occur in progressive cylinder.

There are special transistors present in the engine control module which are known as “drivers” which would turn the fuel injectors on as well as off in the fuel injection system. If the fuel injector is not controlled by the powertrain control module, then it would give rise to P021E error code.

 

What causes this problem with the Cylinder 11 Injection Timing?

 

• Defaults in the crankshaft or camshaft position sensor or circuit
• The fuel injector 11 might be faulty
• Faults in the crankshaft or camshaft position sensor
• There can be bad electrical connection in the fuel injector 11 circuit
• Open or shorted fuel injector 11 harness
• The fuel injection solenoid might be defective
• There can be failure in the engine timing component
• Open or shorted wiring or connectors in fuel injector control circuit
• The fuel injector can turn out to be bad

1. Fuel Injector - OBD Code P021E can appear because of faulty Fuel Injector. You must replace the damaged Fuel Injector online.
2. Crankshaft Sensor - There can be some issues with the Crankshaft Sensor due to which you may see P021E code appearing over and over again. Visit us to buy best quality Crankshaft Sensor online.
3. Camshaft Sensor - Are you facing some faults in your Camshaft Sensor? Don’t worry and get them replaced or else P021E code can turn up.
4. Fuel Injection Harness/Wiring - Common cause behind this P021E error code can be some fault in the Fuel Injection Harness/Wiring. So, it will be a good decision to replace them now.
5. Fuel Tank - Camshaft Sensor is perfectly fine but still but having that trouble code P021E flashing? In such a situation your Fuel Tank might be faulty. Why don’t you think of getting that replaced?
6. Fuel Tank Pressure Sensor - The P021E code can also arise due to some issues in Fuel Tank Pressure Sensor. So, it is advised to replace them as soon as possible.
7. Fuel Temperature Sensor - P021E code does not really end up spoiling your Fuel injector, but it might also accompany few Fuel Temperature Sensor issues. We have best Fuel Temperature Sensor related parts with us.

It is essential to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P021E here:

 

Common Symptoms

 

• There can be problem of engine misfire, sag, or stumble
• There can be an increase in fuel consumption
• Service engine soon warning light can start appearing
• Reduction in the overall fuel efficiency
• An overall lack of engine performance
• Distinctive odour of diesel

If you wish to correct this fault code, then you have to follow certain steps. Correcting a problem needs your careful attention. Here are some ways with the help of which you will be able to correct the OBD Code P021E:

 

• If you find out that there are some defects in the fuel injector, then it should be replaced carefully
• Repair or replace the open or shorted wiring or connectors in fuel injector control circuit
• If the crankshaft or camshaft position sensor is faulty, then it should be repaired or replaced if needed
• Make sure that there are no issues in the wiring

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Here are some steps which you should follow in order to diagnose this fault code:

 

• You will require some important things like a diagnostic scanner, a digital volt/ohmmeter, and a reliable vehicle information source to diagnose a code P021E.
• Then you can start with a visual inspection of high-pressure fuel system related components and wiring harnesses. Carefully search for signs of fuel leakage as well as damage to wiring or connectors.
• Check for technical service bulletins which pertain to the vehicle, symptoms, and codes. If such a tsb is located, it will provide very helpful information for diagnosing this code.
• Then connect the scanner to the vehicle diagnostic port and retrieve all stored trouble codes and freeze frame data. You can always make a note of this information as it may prove beneficial as the diagnosis unfolds. Then clear the codes and test-drive the vehicle to see if the code is reset. If there is crankshaft sensor or camshaft position sensor codes stored, then you should diagnose and repair those before attempting to diagnose the injector timing code.

If the vehicle is equipped with a common rail injection system, then you must utilize the DVOM and the vehicle information source to test the injector solenoid for the cylinder. Any component which fails to comply with manufacturer’s specifications should be replaced before proceeding. After suspicious parts are repaired or replaced, clear any codes which may have been stored during testing and test drive the vehicle until the PCM enters readiness mode or the code is reset. If the PCM does enter readiness mode you know that the repair was successful. If the code is reset – then you can assume that you still have a problem.

 

If the injector solenoid is within specs, unplug the controller and use the DVOM to test system circuits for shorts or opens. Repair or replace system circuits which do not conform to manufacturer’s specifications according to the pin-out chart which is located in your vehicle information source.

 

Unit injector failure can almost always be attributed with engine timing component failure or some type of high-pressure fuel system leak.

 

• Make sure that the P021E code should be diagnosed only by a qualified technician due to extreme fuel pressure
• Determine which type of high-pressure fuel system the vehicle is equipped with before you start your diagnosis

Common Mistakes When Diagnosing The P021E Code

 

• Fuel injector failure
• Quirky wiring
• There can be some powertrain control module