C3072 Diagnostic Trouble Code

C3072 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 C3072 diagnostic trouble code may include:

Lack of power
Faulty O2 Sensor
Poor acceleration
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.

Repair Processes :

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. 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. Use the DVOM to test resistance and continuity on all system circuits if actuator and sensor resistance levels are in compliance with manufacturer's specifications.

Process Tips

Diagnostic trouble code C3072 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 C3072.

Fortunately, C3072 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C3072 Trouble Code For Specific Cars

C3072 Cadillac Brougham Data Mismatch (receive data does not match what was expected)
C3072 Edsel Ranger Injection Control Pressure Out Of Range High
C3072 Mitsubishi Raider Aux Heater Flame Out Fault
C3072 Seat Malaga Injector High Side Open - Bank 2/Target idle not reached
C3072 Nissan Nv200 Control Module VSS Output "B" Malfunction
C3072 Toyota Windom Passenger Seat Rearward Switch Circuit Short to Battery
C3072 Lamborghini Gallardo Shift/Timing Solenoid Intermittent