C1114 Diagnostic Trouble Code

C1114 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 C1114 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
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected

Possible Causes :

A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Faulty IMRC actuator relay (if equipped)
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 :

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. Oxygen sensors signal the engine management computer the amount of oxygen present in the exhaust, which is used in determining and controlling the fuel ratio.

Process Tips

Diagnostic trouble code C1114 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 C1114.

Fortunately, C1114 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C1114 Trouble Code For Specific Cars

C1114 Gmc Terrain Park Brake Valve Solenoid #1 Sense Input Circuit Short to Gound
C1114 Volkswagen Gx3 Ride Control RR Shock Actuator Circuit Short To Ground
C1114 Mercury Cougar Air Suspension LR Air Spring/Shock Solenoid Output Circuit Open
C1114 Dodge Demon Ignition Coil L Primary/Secondary Circuit Malfunction
C1114 Dodge Razor Ignition Run/Start Circuit Open
C1114 Dauer 962 HO2S Heater Control Circuit High (Bank 2 Sensor 2)
C1114 Daimler Daimler Headlamp Aim Output Relay Circuit Failure