C1077 Volvo 244 OBD Code

OBD/2 C1077 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.

One example of this would be when an automatic vehicle in placed in gear. To prevent the added drag from the torque converter and transmission from reducing the idling speed, the PCM will command the idle control valve to allow more air to enter the engine, while at the same time, adjusting the injector pulse width to inject more fuel to suit the increased amount of air. Note that the idle air control valve is closed by the PCM when the throttle plate is opened to prevent excess air from entering the engine.

C1077 Volvo 244 Error Code Repair Process :

If your speed vehicle signal circuit failure check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system C1077 and engine control unit are in charge of monitoring a bunch of different speed vehicle signal circuit failure, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Volvo 244 C1077 OBD2 Code

A common cause of code C1077 is the failure of Speed Vehicle Signal Circuit Failure, but there are several other possible causes as well, such as ;

1Camshaft Position Sensor circuit poor electrical connection
Clogged or faulty fuel injector (s)
Fuel injector leaks
Erratic camshaft position due to low oil pressure

C1077 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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C1077 Volvo 244 OBD Code

C1077 Volvo 244 Error Code Repair Process :

Common Causes of Volvo 244 C1077 OBD2 Code

C1077 code for other Volvo cars