P05C8 Diagnostic Trouble Code

P05C8 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 P05C8 diagnostic trouble code may include:

Misfire
Misfire
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Reduction in engine performance, especially at low RPM levels

Possible Causes :

Dirty air cleaner element Damaged DPF
A plugged converter will cause of host of driveability problems as well as set this code. A severely plugged converter will result in the inability to increase rpm when under load. Look for a code such as P0421 -- catalytic converter efficiency below threshold if the converter indicating a faulty converter.
An air leak forward of the DPF will change the sensor readings resulting in the code

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. Now, clear the codes and test-drive the vehicle to see if the code is reset. 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 P05C8 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 P05C8.

Fortunately, P05C8 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P05C8 Trouble Code For Specific Cars

P05C8 Citroen C5 Fuel Composition Sensor Circuit Malfunction
P05C8 Audi S8 Audio Front Control Module (ACM) is Not Responding
P05C8 Isuzu Bellel
P05C8 De Lorean Dmc HO2S Transition Time Ratio Sensor 1
P05C8 Daewoo Korando Gate Select Actuator Circuit Low
P05C8 Dodge Prowler Ignition Run/Acc Circuit Open
P05C8 Saturn Ls Immobilizer ID Does Not Match