C2982 Diagnostic Trouble Code

C2982 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 C2982 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 :

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.
Fuel with a large percentage of sulfur will clog the DPF quickly

Repair Processes :

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

Process Tips

Diagnostic trouble code C2982 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 C2982.

Fortunately, C2982 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C2982 Trouble Code For Specific Cars

C2982 Cadillac Solitaire Dim Panel Increase Input Circuit Short To Ground
C2982 Daimler Limousine Heated Backlite Input Circuit Short To Battery
C2982 Hyundai Equus SCP (J1850) Invalid or Missing Data for Antenna
C2982 De Dion Bouton 10 Hp HO2S Heater Resistance (Bank 1 Sensor 2)
C2982 Cadillac 60 Damper RF Circuit Open
C2982 Lada 21 Shift Solenoid A Control Circuit Low
C2982 Chevrolet Metro EGI Glow Plug Secondary Failure