P1005 Diagnostic Trouble Code

P1005 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 P1005 diagnostic trouble code may include:

Faulty or damaged wiring
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
Poor fuel economy
Rich or lean exhaust

Possible Causes :

Faulty IMRC actuator relay (if equipped)
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
A large vacuum leak would cause a massive amount of un-metered air to enter the intake manifold resulting in an overly lean mixture.

Repair Processes :

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. 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.

Process Tips

Diagnostic trouble code P1005 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 P1005.

Fortunately, P1005 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1005 Trouble Code For Specific Cars

P1005 Porsche Gt Fuel Pump Primary Circuit Malfunction
P1005 Vauxhall Corsa C Pressure Control Solenoid "C" Intermittent Short
P1005 Fiat Brevetti Lamp Headlamp Low-Beam Circuit Failure
P1005 Volvo S80 Ii SCP (J1850) Invalid or Missing Data for Experimental #3
P1005 Bmw Wartburg Code Word Unregestered
P1005 Ajax Ajax ABS Outlet Valve Coil LR Circuit Short To Ground
P1005 Tvr 1300 Persistent Misfire