C2886 Diagnostic Trouble Code

C2886 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 C2886 diagnostic trouble code may include:

Faulty or damaged wiring
The engine oil will exhibit dilution from the ECUs attempts to increase engine temperature. Some vehicles advance the fuel injection timing slightly after top center to afterburn a small amount of fuel to increase exhaust temperatures. Some of this fuel enters the crankcase. When the ECU determines the necessity to regenerate the DPF, the service life of the oil be shortened significantly
Poor fuel economy
Diminished fuel efficiency

Possible Causes :

The Mass Airflow sensor is a hot wire that senses the volume of air entering the intake manifold. The computer uses this information to control fuel mixture.
Defective ECU strategies or components will prevent proper regeneration
A large vacuum leak would cause a massive amount of un-metered air to enter the intake manifold resulting in an overly lean mixture.

Repair Processes :

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. Now, clear the codes and test-drive the vehicle to see if the code is reset.

Process Tips

Diagnostic trouble code C2886 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 C2886.

Fortunately, C2886 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C2886 Trouble Code For Specific Cars

C2886 Pininfarina Hit ESO - Engine Shut Off Solenoid Fault
C2886 Healey Tickford Passengers Seat Belt Buckle Switch Circuit Short to Battery
C2886 Autobleu Coupe Aux Heater Flame Sensor Circuit Short to Ground
C2886 Mercedes-benz 230 Air Bag Passenger Circuit Open
C2886 Hyundai Equus SCP (J1850) Invalid or Missing Data for Antenna
C2886 Ford 021 Left Rear Turn Lamp Circuit Failure
C2886 Simca Ariane Intercooler Pump Driver Fault