C0119 Diagnostic Trouble Code

C0119 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 C0119 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. Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector. Replace the oxygen sensor that is downstream from the catalytic converter on the side of the engine that does not contain cylinder #1. Also, if a oxygen sensor code stating "heater circuit malfunction" the sensor has most probably failed.

Process Tips

Diagnostic trouble code C0119 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 C0119.

Fortunately, C0119 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0119 Trouble Code For Specific Cars

C0119 Volkswagen Multivan Right Rear Center Sensor Circuit Short to Vbat
C0119 Fiat Mobi Lamp Turn Signal Left Circuit Short To Battery
C0119 Nissan Sports Cruise Control Set Signal Malfunction
C0119 Porsche 986 Fuel level Sensor Circuit Low Input
C0119 Renault 10 Gate Select Position Circuit Range/Performance
C0119 Saab 9-3 Ignition Start Circuit Short To Battery
C0119 Land Rover Serie I Steering Wheel Angle Sensor Offset Failure