P0978 Engine Code Repair
Meaning of P0978 engine trouble code is a kind of powertrain trouble code and when the check engine light comes P0978 code on the first you should check is the gas cap. Pull over, retighten it, and take a look at the cap to see if it has any cracks in it. Continue driving and see if the check engine light turns off. Alternately, you can purchase a gas cap for about $3 at an auto parts store. All you need to do is take the old one off and screw on the new one. If you've already made it to the store, you might as well just replace it. While not car-threatening, it's good to take care of this right away to improve gas mileage.
P0978 Fault Symptoms :
- Check engine light comes on
- Engine stalling or misfiring
- Engine performance issues
- Car not starting
If one of these reasons for P0978 code is occuring now you should check P0978 repair processes.
Now don't ask yourself; What should you do with P0978 code ?
The solution is here :
P0978 Possible Solution:
Power Steering Pressure (PSP) Switch Signal Malfunction The PCM counts the number of times vehicle speed transitions from 0 to a calibratable speed. After a calibratable number of speed transitions the PCM expects that the PSP input should have changed. This DTC is set if the transition is not detected. Vehicle towed with engine running Power steering hydraulic concern was repaired but DTC was not erased PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged Check, if possible, if vehicle was towed or power steering service was performed. Observe PSP V PID while checking wires for intermittents.
P0978 Code Meaning :
P
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine
0
Intake Valve Control Solenoid Circuit Low
9
Engine Oil Temperature Sensor Malfunction
7
Cylinder 4 Contribution/Balance Fault
8
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.
P0978 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP0978 engine trouble code is about Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical.Main reason For P0978 CodeThe reason of P0978 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction. |
P0978 DTCs may also be triggered by faults earlier down the line. For example, a dirty MAF sensor might be causing the car to overcompensate in its fuel-trim adjustments. As a result, oxygen sensors are likely to report fuel mixture problems.