Logo

B21AB Engine Trouble Code

Meaning of B21AB engine trouble code is a kind of body 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.

B21AB Fault Symptoms :

  1. Check engine light comes on
  2. Engine stalling or misfiring
  3. Engine performance issues
  4. Car not starting
If one of these reasons for B21AB code is occuring now you should check B21AB repair processes.
Now don't ask yourself; What should you do with B21AB code ?
The solution is here :

B21AB Possible Solution:

B21AB Engine

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.

B21AB Code Meaning :

B 2 1 a b
OBD-II Diagnostic Body (B) 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.

B21AB OBD-II Diagnostic Body (B) Trouble Code Description

B21AB engine trouble code is about .

Main reason For B21AB Code

The reason of B21AB OBD-II Engine Trouble Code is Fuel Rail/System Pressure - Too High.

B21AB 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.