P0021 Engine Trouble Code
When you check engine light came on code P0021 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However your vehicle's manufacturer may have a different definition for the P0021 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.
P0021 code can be about replacing a broken oxygen sensor can eventually lead to a busted catalytic convertor which can cost upwards of $2,000. Taking your car into a shop will cost you around $200 depending on the car. However, an oxygen sensor is easy to replace on many cars and is usually detailed in the owner's manual. If you know where the sensor is, you only have to unclip the old sensor and replace it with a new one. Regardless of how you approach it, you should get this fixed right away.
P0021 Code Meaning :
|OBD-II Diagnostic Powertrain (P) Trouble Code For Engine||Intake Valve Control Solenoid Circuit Low||Crankshaft Position Sensor A Circuit Malfunction||Glow Plug/Heater Circuit 'A' Malfunction|
Regarding the P0021 code, it would probably be worthwhile to carefully inspect the wire harness near the intake manifold bracket. This is done most easily from below the car in the area near the oil filter.
P0021 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP0021 OBD-II Trouble Code Camshaft Position A Timing Over-Advanced or System Performance Bank 2 is the generic definition for the P0021; however your vehicles manufacturer may have a different definition for the P0021 code. P0021 code.
Reason For P0021 CodeThe reason of P0021 OBD-II Engine Trouble Code is .
P0021 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.