C2094 Diagnostic Trouble Code

C2094 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 C2094 diagnostic trouble code may include:

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
Faulty or damaged wiring
Hesitation upon acceleration
Rich or lean exhaust

Possible Causes :

Faulty IMRC actuator relay (if equipped)
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Defective ECU strategies or components will prevent proper regeneration

Repair Processes :

Check to make sure they are not burnt or corroded. If in doubt, get some Electrical Contact cleaner at any parts store if cleaning of the terminals is needed. 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.

Process Tips

Diagnostic trouble code C2094 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 C2094.

Fortunately, C2094 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C2094 Trouble Code For Specific Cars

C2094 Fairthorpe Tx Injector Circuit Malfunction - Cylinder 7
C2094 Ac 2-litre A/C Relay Circuit Malfunction
C2094 Bmw X5 Column Reach Feedback Potentiometer Circuit Short to Battery
C2094 Isdera 036
C2094 Ford Versailles Module Supply Voltage Out Of Range
C2094 Fairthorpe Electrina Injector Circuit Malfunction - Cylinder 2
C2094 Nissan R300 Crankshaft Position Sensor A Circuit Low Input