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P1557 Engine Trouble Code

Meaning of P1557 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.

P1557 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 P1557 code is occuring now you should check P1557 repair processes.
Now don't ask yourself; What should you do with P1557 code ?
The solution is here :

P1557 Possible Solution:

P1557 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.

P1557 Code Meaning :

P 1 5 5 7
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Fuel And Air Metering Fuel Composition Sensor Circuit Malfunction Cylinder 1 Injector Circuit Low Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

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.

P1557 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P1557 OBD-II Trouble Code Charge Pressure Positive Deviation is one of the definitions for the P1557; however your vehicles manufacturer may have a different definition for the P1557 code. Please check below for your specific P1557 code.

Main reason For P1557 Code

The reason of P1557 OBD-II Engine Trouble Code is Fuel Composition Sensor Circuit Malfunction.

P1557 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.