C2902 Diagnostic Trouble Code

C2902 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 C2902 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.
Engine surge

Possible Causes :

Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
An air leak forward of the DPF will change the sensor readings resulting in the code
Defective ECU strategies or components will prevent proper regeneration

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. Look for damage to the tank indicating impact that may have damaged the fuel pump or sender.

Process Tips

Diagnostic trouble code C2902 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 C2902.

Fortunately, C2902 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C2902 Trouble Code For Specific Cars

C2902 Chevrolet Monza EGR Calibration Fault
C2902 Volkswagen Hac Right Front Center Sensor Circuit Failure
C2902 Turner 803 Pedal Position Sensor C Circuit High Input
C2902 Autobianchi Bianchina Aux Heater Coolant Sensor Circuit Short to Ground
C2902 Mazda 3 Transmission Transfer Case Contact Plate 'B' Short Circuit To Ground
C2902 Nissan Pino Cooling Fan Circuit Over Current
C2902 Chevrolet Avalanche Driver Door Handle Circuit Open