P1177 Engine Trouble Code

Meaning of P1177 engine trouble code is a kind of powertrain trouble code and when your car's 'P1177 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off.

P1177 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 P1177 code is occuring now you should check P1177 repair processes.
Now don't ask yourself; What should you do with P1177 code ?
The solution is here :

P1177 Possible Solution:

P1177 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.

P1177 Code Meaning :

P 1 1 7 7
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Fuel And Air Metering Fuel Rail/System Pressure - Too High Cylinder 10 Contribution/balance Fault Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

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.

P1177 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P1177 OBD-II Trouble Code Synchronization Fault is one of the definitions for the P1177; however your vehicles manufacturer may have a different definition for the P1177 code. Please check below for your specific make. P1177 code.

Main reason For P1177 Code

The reason of P1177 OBD-II Engine Trouble Code is Fuel Rail/System Pressure - Too High.

P1177 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.