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P0455 Engine Code Repair

Meaning of P0455 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.

P0455 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 P0455 code is occuring now you should check P0455 repair processes.
Now don't ask yourself; What should you do with P0455 code ?
The solution is here :

P0455 Possible Solution:

P0455 Engine

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.

P0455 Code Meaning :

P
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine

0
Intake Valve Control Solenoid Circuit Low

4
Throttle/Pedal Position Sensor/Switch A Circuit Intermittent

5
Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)

5
Timing Reference High Resolution Signal A Too Many Pulses

Regarding the P0455 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.

P0455 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P0455 OBD-II Trouble Code This diagnosis detects leaks in the Evaporative Emission System (EVAP) purge line using engine intake manifold vacuum. If pressure does not increase, the Engine Control Module (ECM) will check for lea P0455 code.

Main reason For P0455 Code

The reason of P0455 OBD-II Engine Trouble Code is Throttle/Pedal Position Sensor/Switch A Circuit Intermittent.

Parts or components should not be replaced with reference to only a P0455 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.