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P1142 Engine Code Repair

Meaning of P1142 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.

P1142 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 P1142 code is occuring now you should check P1142 repair processes.
Now don't ask yourself; What should you do with P1142 code ?
The solution is here :

P1142 Possible Solution:

P1142 Engine

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.

P1142 Code Meaning :

P
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine

1
Fuel And Air Metering

1
Ambient Air Temperature Sensor Circuit Low

4
Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)

2
Crankshaft Position Sensor A Circuit Low Input

Regarding the P1142 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.

P1142 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P1142 OBD-II Trouble Code Fuel Restriction Condition is one of the definitions for the P1142; however your vehicles manufacturer may have a different definition for the P1142 code. Please check below for your specific make. P1142 code.

Main reason For P1142 Code

The reason of P1142 OBD-II Engine Trouble Code is Ambient Air Temperature Sensor Circuit Low.

P1142 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.