C0065 Diagnostic Trouble Code

C0065 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 C0065 diagnostic trouble code may include:

Reduction in engine performance, especially at low RPM levels
Vacuum leak on the engine
Diminished fuel efficiency
Poor fuel economy

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.
Faulty IMRC actuator/sensor

Repair Processes :

Once located, visually inspect the connectors and wiring. Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors. Look for damage to the tank indicating impact that may have damaged the fuel pump or sender.

Process Tips

Diagnostic trouble code C0065 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 C0065.

Fortunately, C0065 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0065 Trouble Code For Specific Cars

C0065 Nissan Bluebird Climate Control Temperature Differential Circuit Failure
C0065 Mercedes-benz Sl Class Air Suspension Front Inflator Solenoid Output Circuit Open
C0065 Lancia Aurelia Speed Wheel Sensor LF Input Short Circuit To Battery
C0065 Fafnir 472 Injector Circuit Malfunction - Cylinder 1
C0065 Geely Haoqing O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 3)
C0065 Mercedes-benz Bionic Air Conditioner Refrigerant Charge Loss
C0065 Prince B Fuel Rail Pressure Sensor Circuit Malfunction