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C20E3 BMW Fault Code

Check C20E3 OBD Fault Code Reason
Description:

Throttle Position (TP) Sensor Intermittent The TP sensor circuit is monitored by the PCM for sudden BMW 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 BMW 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.

C20E3 Code Symptoms :

See C20E3 in engine

The original multi-displacement system turned off opposite pairs of cylinders, allowing the engine to have three different configurations and displacements. C20E3 code had an elaborate diagnostics procedure, including showing engine trouble codes on the air conditionning display. However, the system was troublesome, misunderstood by customers, and a rash of unpredictable failures led to the technology being quickly retired.

Diagnosis And Repairing C20E3

C20E3 OBD2 specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.

How to fix C20E3 code ?

See C20E3 repair manual
  • Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection
  • Exhaust gas leaks
  • Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted
  • Spark plugs may be faulty

BMW Cars that meet C20E3 error