Error Code P021A: What It Means & What To Do?

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The OBD code decreased engine performance can be defined as a Cylinder 7 Injection Timing. 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 P021A fault code.

If the P021A fault code is stored, then it would mean that the malfunction has been detected in the powertrain control module in the injection timing circuit for a specific cylinder for the car engine. You can always consult a reliable vehicle information source to know the exact location of the cylinder for the vehicle in which P021A trouble code is triggering.

The P021A is stored in vehicles which are equipped with diesel engines. Extreme levels of fuel pressure are required by clean burning diesel engines.

What causes this problem with the Cylinder 7 Injection Timing?

• Defective crankshaft or camshaft position sensor
• The fuel injector 7 harness might be opened or shorted
• The fuel injection solenoid might be defective
• Open or shorted wiring or connectors in fuel injector control circuit
• There can be poor electrical connection in the fuel injector 7 circuit
• The fuel injector can turn out to be bad
• There can be failure in the engine timing component
• Faults in the crankshaft or camshaft position sensor or circuit
• There can be defaults in the fuel injector 7

1. Fuel Injector - Did your mechanic just found out that there is some fault in the Fuel Injector? Buy top notch Fuel Injector from us at economical prices.
2. Crankshaft Sensor - A broken Crankshaft Sensor can cause a lot of issues. It would be nice if you get it replaced on time.
3. Camshaft Sensor - Everything is fine with the engine control module and still OBD code P021A flashing? Then there is definitely some fault with the Camshaft Sensor. Get it checked and replace if needed.
4. Fuel Injection Harness/Wiring - Fuel Injection Harness/Wiring is an important car part which should never be neglected. May be there is some fault in the Fuel Injection Kit due to which P021A code may start flashing.
5. Fuel Tank - A faulty Fuel Tank can be troublesome. You can always rely on us as we have best auto parts for our customers.
6. Fuel Tank Pressure Sensor - If everything is alright with Camshaft Sensor, then there is surely some defect in Fuel Tank Pressure Sensor. Get it replaced before the situation gets worse.
7. Fuel Temperature Sensor - P021A code can display due to some issues in the Fuel Temperature Sensor. So, it is very important to replace the Fuel Temperature Sensor with us at equitable prices.

Our main motive is to achieve customer satisfaction as for us our customers are everything and that’s why we will help you to diagnose P021A code by mentioning some major symptoms below:

Common Symptoms

• The fuel efficiency can start reducing
• There can be problem of engine misfire, sag, or stumble
• An overall lack of engine performance
• Service engine soon warning light can start appearing
• There can be odour of diesel
• The fuel consumption can start rising

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 P021A:

• The fuel injector should be replaced
• If there are some defects in the crankshaft or camshaft position sensor, then it should be repaired or replaced if needed
• Replace the open or shorted wiring or connectors in fuel injector control circuit
• Make sure that the engine timing component is in perfect condition

However, if you face any issue then we have stocked a wide range of best priced fuel injector solenoid, injection pump, performance fuel injectors and more to help you out in fixing your car.

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

First of all, you would need a diagnostic scanner, a digital volt/ohmmeter, and a reliable vehicle information source to diagnose a code P021A.

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 code is reset:

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 P021A 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 P021A Code

• Wiring issue
• Flaws in the Fuel injector
• Powertrain Control Module might start failing