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P2394 Engine Code Repair

Meaning of P2394 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.

P2394 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 P2394 code is occuring now you should check P2394 repair processes.
Now don't ask yourself; What should you do with P2394 code ?
The solution is here :

P2394 Possible Solution:

P2394 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.

P2394 Code Meaning :

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

2
Fuel And Air Metering (Injector Circuit Malfunctions Only)

3
Manifold Absolute Pressure/Barometric Pressure Circuit High Input

9
Ignition/Distributor Engine Speed Input Circuit Malfunction

4
Exhaust Gas Recirculation Sensor B Circuit High

Regarding the P2394 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.

P2394 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P2394 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Main reason For P2394 Code

The reason of P2394 OBD-II Engine Trouble Code is Manifold Absolute Pressure/Barometric Pressure Circuit High Input.

P2394 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.