C3005 Diagnostic Trouble Code

C3005 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 C3005 diagnostic trouble code may include:

Lack of power
Faulty O2 Sensor
Poor acceleration
Reduction in engine performance, especially at low RPM levels

Possible Causes :

A faulty oxygen sensor. This will set a code in itself, however, a faulty oxygen sensor does not automatically condemn the sensor. The code just means that the sensor signal was not within specifications. An air leak or any of the above will cause an erroneous signal. There is a multitude of O2 codes relating to O2 performance which gives a clue to the problematic area.
Some aftermarket accessories and performance modifications
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 :

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. Once located, visually inspect the connectors and wiring. Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors. 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.

Process Tips

Diagnostic trouble code C3005 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 C3005.

Fortunately, C3005 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C3005 Trouble Code For Specific Cars

C3005 Ford Libre Mirror Driver Switch Assembly Circuit Short To Battery
C3005 Mercedes Clk 500 ABS Outlet Valve Coil Rear Circuit Open
C3005 Chevrolet El Camino Drivers Seat Belt Buckle Switch Circuit Open
C3005 Mercedes C 300 ABS Inlet Valve Coil LR Circuit Open
C3005 Willys-overland Rural
C3005 Marcos Mantula Transmission 4-Wheel Drive High Indicator Circuit Failure
C3005 Hotchkiss 3.5-litre Ride Control LF Shock Actuator Circuit Failure