If the check engine light comes on and Diagnostic records crank angle sensor noise.
Fit – GD1,GD2
If your Fit engine vibration, shaking, poor acceleration, poor idling and the check engine light comes on and the diagnostics register a noise in the crank angle sensor.
Even replacing the crank angle sensor does not resolve the problem.
There is no electrical noise in the sensor signal itself, but the aforementioned DTC is detected when the cycle of the crank angle sensor signal is disturbed while the throttle valve opening is constant.
The insulation of the direct ignition coil deteriorates, causing the spark to fly to other metal parts before reaching the spark plug electrode, resulting in a misfire, and a DTC is detected by the crank angle sensor signal with an irregular cycle.
Therefore, the symptoms can be improved by inspecting and replacing the direct ignition coils.
Use an ignition coil tester to diagnose ignition coil leaks.
Automotive maintenance cannot determine the cause based on symptoms alone.
Be sure to perform diagnosis and inspection before determining the cause of the failure.
