P263C Diagnostic Trouble Code

P263C 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 P263C diagnostic trouble code may include:

Blown fuse (if applicable)
Engine surge
Reduction in engine performance, especially at low RPM levels
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 :

Defective ECU strategies or components will prevent proper regeneration
The Mass Airflow sensor is a hot wire that senses the volume of air entering the intake manifold. The computer uses this information to control fuel mixture.
Dirty air cleaner element Damaged DPF

Repair Processes :

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 P263C 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 P263C.

Fortunately, P263C is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P263C Trouble Code For Specific Cars

P263C Daihatsu Feroza Gear Shift Position Control Error
P263C Buick 90 Cylinder 5 Contribution/Balance Fault
P263C Volkswagen Type 3
P263C Rambler Ambassador Fuel Temperature Sensor B Circuit Malfunction
P263C Duesenberg Sj IMCC Circuit Malfunction, Bank B
P263C Audi A8 ANTI THEFT HORN OUTPUT CIRCUIT Short to Gnd
P263C Mitsubishi A10 Audio Center Amp is not responding