B0178 Engine Trouble Code

Meaning of B0178 engine trouble code is a kind of body trouble code and when your car's 'B0178 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.

B0178 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 B0178 code is occuring now you should check B0178 repair processes.
Now don't ask yourself; What should you do with B0178 code ?
The solution is here :

B0178 Possible Solution:

B0178 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.

B0178 Code Meaning :

B 0 1 7 8
OBD-II Diagnostic Body (B) Trouble Code For Engine Intake Valve Control Solenoid Circuit Low Fuel Rail/System Pressure - Too High Cylinder 10 Contribution/balance Fault Clutch Position Sensor Circuit Malfunction

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.

B0178 OBD-II Diagnostic Body (B) Trouble Code Description

B0178 engine trouble code is about Clutch Position Sensor Circuit Malfunction.

Main reason For B0178 Code

The reason of B0178 OBD-II Engine Trouble Code is Fuel Rail/System Pressure - Too High.

B0178 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.