C0214 Diagnostic Trouble Code

C0214 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 C0214 diagnostic trouble code may include:

Excessive exhaust leak
Hesitation upon acceleration
Malfunction Indicator Lamp (MIL) illuminated
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)
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.

Repair Processes :

If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve. 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 C0214 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 C0214.

Fortunately, C0214 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0214 Trouble Code For Specific Cars

C0214 Nissan Alpha Climate Control A/C Pressure Switch Circuit Short To Battery
C0214 Mercedes B 160 ABS Hydraulic Pressure Differential Switch Input Open Circuit
C0214 Saab 9-7x Ignition Tach Circuit Short To Battery
C0214 Mercury Mountaineer Ii Air Suspension Rear Inflator Solenoid Output Circuit Failure
C0214 Gaz Chaika O2 Sensor Circuit Slow Response (Bank 2 Sensor 1)
C0214 Bizzarrini Gt Brake Switch Malfunction
C0214 Bugatti Type 17 Cylinder #8 High To Low Side Open