C1080 Diagnostic Trouble Code

C1080 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 C1080 diagnostic trouble code may include:

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

Possible Causes :

Faulty IMRC actuator/sensor
A large vacuum leak would cause a massive amount of un-metered air to enter the intake manifold resulting in an overly lean mixture.
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)

Repair Processes :

It should be pretty close to battery voltage (12 volts). If not, then this is the circuit that has the problem. Look at the plug wires to make sure they are not burnt or laying on the exhaust. 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 C1080 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 C1080.

Fortunately, C1080 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C1080 Trouble Code For Specific Cars

C1080 Dkw F1 Idle Control System Circuit Open
C1080 Mazda Cosmo Transmission Transfer Case Disengaged Solenoid Circuit Failure
C1080 Ford Sierra Mirror Passenger Right Circuit Open
C1080 Alfa Romeo Gp Air Assist Control Valve Circuit Malfunction
C1080 Proto Spirra Fuel Restriction Condition
C1080 Riley Brooklands Horn Relay Coil Circuit Failure
C1080 Subaru Svx Longitudinal Acceleration Threshold Exceeded