P0992 Diagnostic Trouble Code

P0992 is a kind of OBD-II Diagnostic P-Powertrain 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 P0992 diagnostic trouble code may include:

Corroded or damaged connector
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Lack of power
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

Possible Causes :

A large vacuum leak would cause a massive amount of un-metered air to enter the intake manifold resulting in an overly lean mixture.
Faulty IMRC actuator/sensor
Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.

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. You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data. Find out what kind of system you have and verify that voltage to the fuel level sensor is present at the fuel pump wiring harness.

Process Tips

Diagnostic trouble code P0992 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 P0992.

Fortunately, P0992 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P0992 Trouble Code For Specific Cars

P0992 Acura Rdx ABS Inlet Valve Coil LF Circuit Short To Battery
P0992 Holden Vp Pressure Control Solenoid "A" Short Circuit
P0992 Gutbrod Superior Passenger Sid, Side mount Airbag Low resistance on Squib
P0992 Mercury Milan Air Suspension Rear Height Sensor High (SE) Signal Circuit Short To Battery
P0992 Lancia Dedra Speed Wheel Sensor LR Coherency Fault
P0992 Alfa Romeo Brera Accessory Delay Relay Coil Circuit Short To Battery
P0992 Mini Ii ASM Control Circuit Intermittent