C257C Morris Fourteen OBD Code

OBD/2 C257C error code description and symptoms.

Intake Manifold Runner Control Malfunction (Stuck Open) The IMRC system is monitored for failure during continuous, key ON engine OFF or key ON engine running self-test. The test fails when the signal on the monitor pin is less than an expected calibrated range at closed throttle. IMRC monitor signal circuit shorted to PWR GND or SIG RTN Damaged IMRC actuator Damaged PCM An IMRCM PID reading approximately near 1 volt at closed throttle may indicate a fault.

Some systems require that the actuator has an adequate supply of brake fluid. Low brake fluid levels can mimic the symptoms of code C257C, so consult the manual to locate the brake fluid reservoir. Bear in mind that a low fluid level can set code C257C on some applications, so make sure that on fluid operated systems the fluid level is up to the mark before starting an electrical diagnosis.

C257C Morris Fourteen Error Code Repair Process :

The rule of C257C 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 fuel temperature sensor #1 circuit failure. Likewise, overriding the OBD C257C 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 Morris Fourteen C257C OBD2 Code

A common cause of code C257C is the failure of Fuel Temperature Sensor #1 Circuit Failure, but there are several other possible causes as well, such as ;

1Camshaft Position Sensor circuit poor electrical connection
Faulty front heated oxygen sensor
Fuel injectors may be faulty
Faulty oil control valve (OCV)

C257C 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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C257C Morris Fourteen OBD Code

C257C Morris Fourteen Error Code Repair Process :

Common Causes of Morris Fourteen C257C OBD2 Code

C257C code for other Morris cars