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C3666 Engine Trouble Code

Meaning of C3666 engine trouble code is a kind of chassis trouble code and C3666 code can be about replacing a broken oxygen sensor can eventually lead to a busted catalytic convertor which can cost upwards of $2,200. Taking your car into a shop will cost you around $210 depending on the car. However, an oxygen sensor is easy to replace on many cars and is usually detailed in the owner's manual. If you know where the sensor is, you only have to unclip the old sensor and replace it with a new one. Regardless of how you approach it, you should get this fixed right away.

C3666 Fault Symptoms :

  1. Check engine light comes on
  2. Engine stalling or misfiring
  3. Engine performance issues
  4. Car not starting
If one of these reasons for C3666 code is occuring now you should check C3666 repair processes.
Now don't ask yourself; What should you do with C3666 code ?
The solution is here :

C3666 Possible Solution:

C3666 Engine

Power Steering Pressure (PSP) Switch Malfunction In Key On, Engine Off Self-Test, this DTC indicates the PSP input to the PCM is high. In Key On, Engine Running Self-Test, this DTC indicates that the PSP input did not change state. Steering wheel must be turned during Key On, Engine Running Self-Test PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged.

C3666 Code Meaning :

C 3 6 6 6
OBD-II Diagnostic Chassis (C) Trouble Code For Engine Ignition System Or Misfire Fuel Temperature Sensor B Circuit Range/Performance Cylinder 4 Contribution/Balance Fault Ignition Coil A Primary/Secondary Circuit Malfunction

Regarding the C3666 code, it would probably be worthwhile to carefully inspect the wire harness near the intake manifold bracket. This is done most easily from below the car in the area near the oil filter.

C3666 OBD-II Diagnostic Chassis (C) Trouble Code Description

C3666 engine trouble code is about Ignition Coil A Primary/Secondary Circuit Malfunction.

Main reason For C3666 Code

The reason of C3666 OBD-II Engine Trouble Code is Fuel Temperature Sensor B Circuit Range/Performance.

C3666 DTC 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.