C0297 Diagnostic Trouble Code

C0297 is a kind of OBD-II Diagnostic C-Chassis 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 C0297 diagnostic trouble code may include:

Rich or lean exhaust
Fuel pressure too low
Engine surge
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

An air leak forward of the DPF will change the sensor readings resulting in the code
Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
Faulty IMRC actuator relay (if equipped)

Repair Processes :

If you find a related TSB, the information will often help in diagnosing the code in question as TSBs are crested from many thousands of repairs. 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. If the engine displays a miss and there wasn't a code, determine which cylinder is misfiring. If the exhaust manifold is visible, spay or pour a small amount of water on each cylinder exhaust port. Water will evaporate immediately on good cylinders and slowly on the missing cylinder. If this can't be accomplished pull the plugs and check the condition.

Process Tips

Diagnostic trouble code C0297 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 C0297.

Fortunately, C0297 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0297 Trouble Code For Specific Cars

C0297 Bugatti Type 44 Cylinder 11 Injector Circuit High
C0297 Nissan Tiida Cylinder #2 High To Low Side Short
C0297 Volvo 850
C0297 Cadillac 6.5 Hp Damper RF Circuit Failure
C0297 Skoda 1000 Invalid Test,throttle not depressed
C0297 Kissel 8 Servo Motor Potentiometer Airintake Right Circuit Failure
C0297 Sbarro Issima Injection Pump Fuel Metering Control "A" Intermittent (Cam/Rotor/Injector)