C3798 Fiat 128 OBD Code

OBD/2 C3798 error code description and symptoms.

Throttle Position (TP) Sensor Intermittent The TP sensor circuit is monitored by the PCM for sudden TP rotation angle (or voltage) input change through the comprehensive component monitor (CCM). If during the last 80 warm-up cycles in key ON engine running the PCM detects a TP rotation angle (or voltage) changes beyond the minimum or maximum calibrated limit, a continuous diagnostic trouble code (DTC) is stored. Poor continuity through the TP sensor connectors Poor continuity through the TP harness Intermittent open or short inside the TP sensor While accessing the TP V PID on the scan tool, lightly tap on the TP sensor or wiggle the TP sensor connector and harness.

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.

C3798 Fiat 128 Error Code Repair Process :

If your damper rf 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 C3798 and engine control unit are in charge of monitoring a bunch of different damper rf circuit failure, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Fiat 128 C3798 OBD2 Code

A common cause of code C3798 is the failure of Damper RF Circuit Failure, but there are several other possible causes as well, such as ;

Damaged VCT phaser
Faulty Variable Camshaft Timing (VCT) position solenoid
Ignition misfiring
Camshaft Position Sensor harness is open or shorted

C3798 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.

About Us | Contact | Privacy

C3798 Fiat 128 OBD Code

C3798 Fiat 128 Error Code Repair Process :

Common Causes of Fiat 128 C3798 OBD2 Code

C3798 code for other Fiat cars