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C3874 Engine Trouble Code

Meaning of C3874 engine trouble code is a kind of chassis trouble code and C3874 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.

C3874 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 C3874 code is occuring now you should check C3874 repair processes.
Now don't ask yourself; What should you do with C3874 code ?
The solution is here :

C3874 Possible Solution:

C3874 Engine

Gasoline engines use spark plugs to cause an explosion of fuel within the cylinder. In a properly timed engine, this explosion occurs at the proper moment to send the piston to the bottom of the cylinder and provide power to the drive shaft. If the plug wires are out of sequence, the explosion occurs at the wrong time. The improper timing of the explosion sometimes pushes the cylinder the wrong direction or interferes with the turning of the crank. As a result, the engine stutters or backfires, if it runs at all.

C3874 Code Meaning :

C 3 8 7 4
OBD-II Diagnostic Chassis (C) Trouble Code For Engine Ignition System Or Misfire Engine Oil Temperature Sensor Malfunction Cylinder 10 Contribution/balance Fault Timing Reference High Resolution Signal A Too Many Pulses

Regarding the C3874 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.

C3874 OBD-II Diagnostic Chassis (C) Trouble Code Description

C3874 engine trouble code is about Timing Reference High Resolution Signal A Too Many Pulses.

Main reason For C3874 Code

The reason of C3874 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.

C3874 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.