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P1787 Engine Trouble Code

Meaning of P1787 engine trouble code is a kind of powertrain trouble code and P1787 code can be about replacing a broken oxygen sensor can eventually lead to a busted catalytic convertor which can cost upwards of $2,000. Taking your car into a shop will cost you around $200 depending on the car. However, an oxygen sensor is easy to replace on many cars and is usually detailed in the owner's manual. If you know where the sensor is, you only have to unclip the old sensor and replace it with a new one. Regardless of how you approach it, you should get this fixed right away.

P1787 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 P1787 code is occuring now you should check P1787 repair processes.
Now don't ask yourself; What should you do with P1787 code ?
The solution is here :

P1787 Possible Solution:

P1787 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.

P1787 Code Meaning :

P 1 7 8 7
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Fuel And Air Metering Fuel Rail Pressure Sensor Circuit Malfunction Ignition/Distributor Engine Speed Input Circuit Malfunction Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

Regarding the P1787 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.

P1787 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P1787 engine trouble code is about Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical.

Main reason For P1787 Code

The reason of P1787 OBD-II Engine Trouble Code is Fuel Rail Pressure Sensor Circuit Malfunction.

P1787 DTC reports a sensor fault, replacement of the sensor is unlikely to resolve the underlying problem. The fault is most likely to be caused by the systems that the sensor is monitoring, but might even be caused by the wiring to the sensor itself.