P125A Engine Code Repair
Meaning of P125A engine trouble code is a kind of powertrain trouble code and P125A 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.
P125A Fault Symptoms :
- Check engine light comes on
- Engine stalling or misfiring
- Engine performance issues
- Car not starting
If one of these reasons for P125A code is occuring now you should check P125A repair processes.
Now don't ask yourself; What should you do with P125A code ?
The solution is here :
P125A Possible Solution:

Air Conditioning Pressure Sensor (ACP) Insufficient Pressure Change Each time the A/C clutch engages, the PCM is looking for a pressure change in the refrigerant. If the change in pressure is outside of the calibration the DTC will set. A/C system mechanical failure Open ACP or VREF circuit A/C sensor damaged A/C system electrical failure A/C clutch always engaged Verify A/C system function, including refrigerant charge.
P125A Code Meaning :
P
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine
1
Fuel And Air Metering
2
Fuel Rail/System Pressure - Too High
5
Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
a
Is the fuel pump sometimes not priming when you turn the key to ON(II)? Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. The mechanical timing is also something that you should check, as we mentioned above.
P125A OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP125A engine trouble code is about .Main reason For P125A CodeThe reason of P125A OBD-II Engine Trouble Code is Fuel Rail/System Pressure - Too High. |
P125A 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.