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C0621 Engine Trouble Code

Meaning of C0621 engine trouble code is a kind of chassis trouble code and C0621 if your catalytic convertor fails completely, you eventually won't be able to keep the car running. Your gas mileage will also be terrible, so you should try and fix it as soon as you can. Unfortunately, the average replacement cost is around $2,140 and you can't do it yourself unless you're an experienced mechanic.

C0621 Fault Symptoms :

Check engine light comes on
Engine stalling or misfiring
Engine performance issues
Car not starting

If one of these reasons for C0621 code is occuring now you should check C0621 repair processes.
Now don't ask yourself; What should you do with C0621 code ?
The solution is here :

C0621 Possible Solution:

Power Steering Pressure (PSP) Switch Malfunction In Key On, Engine Off Self-Test, this DTC indicates the PSP input to the PCM is high. In Key On, Engine Running Self-Test, this DTC indicates that the PSP input did not change state. Steering wheel must be turned during Key On, Engine Running Self-Test PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged.

C0621 Code Meaning :

C	0	6	2	1
OBD-II Diagnostic Chassis (C) Trouble Code For Engine	Intake Valve Control Solenoid Circuit Low	Fuel Temperature Sensor B Circuit Range/Performance	Turbocharger Boost Sensor A Circuit Low	Crankshaft Position Sensor A Circuit Low Input

The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate.

C0621 OBD-II Diagnostic Chassis (C) Trouble Code Description

C0621 engine trouble code is about Crankshaft Position Sensor A Circuit Low Input.

Main reason For C0621 Code

The reason of C0621 OBD-II Engine Trouble Code is Fuel Temperature Sensor B Circuit Range/Performance.

C0621 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.

	Example: 0140