C20AF Fiat 500x OBD Code

OBD/2 C20AF 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.

C20AF Fiat 500x Error Code Repair Process :

If your downstream heated o2 sensors swapped 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 C20AF and engine control unit are in charge of monitoring a bunch of different downstream heated o2 sensors swapped, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Fiat 500x C20AF OBD2 Code

A common cause of code C20AF is the failure of Downstream Heated O2 Sensors Swapped, but there are several other possible causes as well, such as ;

1Camshaft Position Sensor circuit poor electrical connection
Faulty spark plug (s)
Faulty Fuel injector
Camshaft advance mechanism binding (VCT unit)

C20AF 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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C20AF Fiat 500x OBD Code

C20AF Fiat 500x Error Code Repair Process :

Common Causes of Fiat 500x C20AF OBD2 Code

C20AF code for other Fiat cars