C2357 Subaru Impreza 3 Diagnostic Trouble Code

C2357 Subaru Impreza 3 code definition:
C2357 is a kind of OBD-II Diagnostic C-Chassis Diagnostic Trouble Code for Subaru Impreza 3.

C2357 Subaru Impreza 3 is triggered when the bank 1 camshaft position sensor doesn't match the signal from the crankshaft position sensor. If the car doesn't start, they will proceed by testing the voltage at the fuel pump connector and see if the fuel pump relay, fuse, and PCM circuitry should be inspected.

Symptoms

Symptoms of a C2357 Subaru Impreza 3 diagnostic trouble code may include:
Place of C2357 in engine

Possible Causes :

  • A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
  • Faulty IMRC actuator relay (if equipped)
  • Fuel with a large percentage of sulfur will clog the DPF quickly

Common Misdiagnoses

  1. Vehicle Speed Output Circuit Problem
  2. Cruise Control Servo Indicates Low Problem
  3. A/C System High Pressure High Temperature Problem
  4. PCM Stack Overrun Problem
  5. Transmission Control Module Reprogrammable Memory Problem

Repair Processes :

If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve. With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground.

Process Tips

Diagnostic trouble code C2357 Subaru Impreza 3 is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before C2357 Subaru Impreza 3.

Fortunately, C2357 Subaru Impreza 3 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

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