Guide To P020C OBD Error Code Solutions

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If your engine light is blinking and OBD Scanner stores the code P020C, it means that the powertrain control module (PCM) has detected a malfunction in the injection timing circuit for a particular cylinder of the engine. In such case Fuel Injector will unable to work and Crankshaft or Camshaft Position Sensor stop working, if you are facing such problems then it implies that you are in a nasty situation. OBD Code P020C will help you to diagnose the problem. P020C code indicates you to consult with a well experienced mechanic to diagnose the problem.

OBD-II Code P020C Decreased engine performance is defined as a Cylinder 3 Injection Timing. This fault code is logged when the PCM determines that unintended fuel injection has occurred. The PCM has special transistors called “drivers” to turn the Fuel Injectors on and off in the Fuel Injection System. If the PCM cannot control the fuel injector, it will set code P020C. Due to this trouble code you may start confronting problems like decreased engine performance, increased fuel consumption, engine surge, poor acceleration etc. This code is stored exclusively on the vehicles equipped with diesel engines.

Some Vehicles may require multiple ignition cycles with a failure for this type of code to be stored. Variations in camshaft or crankshaft timing alert the PCM of inconsistencies and prompt a stored code P020C.

What causes this problem of Cylinder 3 Injection Timing?

• Frayed Fuel Injector
• Damaged camshaft position sensor
• Shorted connectors
• Faulty fuel Injection Solenoid
• Inoperative engine timing components
• PCM failure

1. Fuel Injector - Fuel injectors spray a fine gasoline mist into the engine's intake manifold for combustion with the oxygen. If it stops working efficiently can cause trouble code P020C.
2. Crankshaft Sensor - Crankshaft sensor is an electronic device used in both petrol and diesel internal combustion engine to monitor the position or rotational speed of the crankshaft. If found faulty should be repaired or replaced as required.
3. Powertrain Control Module - ECM/PCM it basically provides the brain for the engine of the vehicle and ensure the timing and emissions control system works properly. It is generally mounted either in the engine compartment or under one of your front seats. So, if it founds malfunctioned should be repaired or replaced as required.
4. Fuel Injector Solenoid - Fuel injection is the introduction of fuel in an internal combustion engine but solenoid lifts the needle valve from the valve seat, and fuel under pressure is sent in the engine cylinder. If you discover it faulty, replace it immediately.
5. Camshaft Sensor - The camshaft sensor generally enables the engine control to determine the exact position of the crankshaft drive. Always have a check of its proper functioning.
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Below mentioned are the symptoms for the Trouble Code P020C:

• Reduced engine performance
• Low fuel efficiency
• Raised level of fuel consumption
• Illuminated check engine light

To correct or fix this code one should seek assistance from a trained automotive diagnostician but if you want to do it by yourself, please follow the below mentioned steps. To diagnose this trouble code, one should require a scanner, a digital voltmeter/ohmmeter.

• Start with the inspection of high-pressure fuel system related components and wiring harnesses.
• Have a check on fuel leakage as well as damage to wiring or connectors.
• Try to retrieve all stored trouble codes and freeze frame data by connecting scanner to the vehicle diagnostic port.
• Clear the codes and test-drive the vehicle to see if the code is reset.
• If in case you find crankshaft sensor or camshaft position sensor codes stored diagnose and repair those before attempting to diagnose the injector timing code.

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Diagnostic trouble code P020C is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

• Clear the codes and test-drive the vehicle to see if the code is reset.
• Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame.
• Check for damage to the wiring harness connector.
• Oxygen sensors signal the engine management computer the amount of oxygen present in the exhaust, which is used in determining and controlling the fuel ratio.

Common Mistakes When Diagnosing the P020C Code

We recommend you to always approach a qualified technician or mechanic to diagnose the code P020C because of intense fuel pressure. But still if you are doing it by your own please keep the following mentioned common mistakes in mind to avoid them:

• Replacing the fuel injectors when the problem is with unclean or dirty fuel filter.
• Glow plugs may worn out and not changed or the faulty glow plug relay.
• Check fuel supply pump if defective kindly replace it.
• Make sure you always have a quality fuel.