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C3804 Engine Trouble Code

Meaning of C3804 engine trouble code is a kind of chassis trouble code and C3804 code can be about replacing a broken oxygen sensor can eventually lead to a busted catalytic convertor which can cost upwards of $2,000. Taking your car into a shop will cost you around $200 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.

C3804 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 C3804 code is occuring now you should check C3804 repair processes.
Now don't ask yourself; What should you do with C3804 code ?
The solution is here :

C3804 Possible Solution:

C3804 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.

C3804 Code Meaning :

C 3 8 0 4
OBD-II Diagnostic Chassis (C) Trouble Code For Engine Ignition System Or Misfire Engine Oil Temperature Sensor Malfunction Cold Start Injector 1 Malfunction Timing Reference High Resolution Signal A Too Many Pulses

Regarding the C3804 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.

C3804 OBD-II Diagnostic Chassis (C) Trouble Code Description

C3804 engine trouble code is about Timing Reference High Resolution Signal A Too Many Pulses.

Main reason For C3804 Code

The reason of C3804 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.

C3804 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.