P0297 Diagnostic Trouble Code

P0297 is a kind of OBD-II Diagnostic P-Powertrain Diagnostic Trouble Code.

It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car model.

Symptoms

Symptoms of a P0297 diagnostic trouble code may include:

Misfire
Misfire
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Reduction in engine performance, especially at low RPM levels

Possible Causes :

Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
An air leak forward of the DPF will change the sensor readings resulting in the code

Repair Processes :

Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. Replace the oxygen sensor that is downstream from the catalytic converter on the side of the engine that does not contain cylinder #1. Also, if a oxygen sensor code stating "heater circuit malfunction" the sensor has most probably failed. If the scan tool has that capability, and the scan tool can operate the IMRC valves, then the problem is either resolved and a simple code clearing is all that's left or a new PCM would be called for.

Process Tips

Diagnostic trouble code P0297 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 P0297.

Fortunately, P0297 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P0297 Trouble Code For Specific Cars

P0297 Honda Fr-v PRNDL Reverse Input Short Circuit To Ground
P0297 Fiat 520 Lamp Brake Warning Output Circuit Failure
P0297 Dodge Stealth Ignition Start Circuit Short To Battery
P0297 Raymond Mays 20 Fuel Volume Regulator Control Circuit High
P0297 Rover P5b Ignition Cylinder Sensor Battery Short
P0297 Citroen Gsx Fuel Pressure Regulator 1 Control Circuit High
P0297 Alfa Romeo Giulia Additional Fan Relay Circuit Malfunction