P21AB Engine Trouble Code
Meaning of P21AB engine trouble code is a kind of powertrain trouble code and theoretically you can drive for a few weeks or even months with a broken MAF sensor. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. At a shop, the replacement cost is between $240-$400 depending on the car, but that's usually the cost of parts because the labor is relatively simple.
P21AB Fault Symptoms :
If one of these reasons for P21AB code is occuring now you should check P21AB repair processes.
Now don't ask yourself; What should you do with P21AB code ?
The solution is here :
P21AB 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.
P21AB Code Meaning :
|OBD-II Diagnostic Powertrain (P) Trouble Code For Engine||Fuel And Air Metering (Injector Circuit Malfunctions Only)||Fuel Rail/System Pressure - Too High|
The poor running symptoms are consistent with a MAP sensor malfunction. In addition, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code likely represents a separate wiring issue.
P21AB OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP21AB engine trouble code is about .
Main reason For P21AB CodeThe reason of P21AB OBD-II Engine Trouble Code is Fuel Rail/System Pressure - Too High.
P21AB 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.