C278C Simca Vedette Beaulieu OBD Code

OBD/2 C278C error code description and symptoms.

Output Shaft Speed sensor circuit intermittent failure The output shaft speed sensor signal to the PCM is irregular or interrupted.
Harness connector not properly seated Harness intermittently shorted, or open Harness connector damaged OSS sensor damaged, or not installed properly Verify harness and connector integrity Verify OSS sensor proper installation.

As long as the throttle plate remains closed, the idling speed and quality is controlled by the PCM via the idle control valve, and as can be seen from the above it should be clear that idle control on a gasoline engine is a complex affair. For instance, if the engine is started in sub-zero temperatures, the PCM will command the idling control valve to allow less air to enter the engine to enrich the air/fuel mixture to create a condition which is roughly analogous to how chokes worked on carburetted engines to control idling in cold weather.

C278C Simca Vedette Beaulieu Error Code Repair Process :

The rule of C278C code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example of brake pedal input open circuit. Likewise, overriding the OBD C278C error in system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.

Common Causes of Simca Vedette Beaulieu C278C OBD2 Code

A common cause of code C278C is the failure of Brake Pedal Input Open Circuit, but there are several other possible causes as well, such as ;

Camshaft Position Sensor harness is open or shorted
Faulty Crankshaft Position Sensor (POS)
EVAP canister or fuel tank leaks
Intake Valve Timing Control Solenoid Valve harness is open or shorted

C278C is a kind of Chassis Trouble Code

Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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C278C Simca Vedette Beaulieu OBD Code

C278C Simca Vedette Beaulieu Error Code Repair Process :

Common Causes of Simca Vedette Beaulieu C278C OBD2 Code

C278C code for other Simca cars