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U0866 Engine Code Repair

Meaning of U0866 engine trouble code is a kind of network trouble code and theoretically you can drive for a few weeks or even months with a broken MAF sensor. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. At a shop, the replacement cost is between $240-$400 depending on the car, but that's usually the cost of parts because the labor is relatively simple.

U0866 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 U0866 code is occuring now you should check U0866 repair processes.
Now don't ask yourself; What should you do with U0866 code ?
The solution is here :

U0866 Possible Solution:

U0866 Engine

The firing order is an important part of the overall design of the engine and is determined during the design of the engine to eliminate as much engine vibration as possible. If the firing order is changed or adjusted, the ignition from the spark plug is delivered at the wrong time and the engine functions poorly or does not run. The firing order for a particular engine is typically found in the repair manual specific to that model.

U0866 Code Meaning :

U
OBD-II Diagnostic Network (U) Trouble Code For Engine

0
Intake Valve Control Solenoid Circuit Low

8
Fuel Rail Pressure Sensor Circuit Malfunction

6
Cylinder 1 Injector Circuit Low

6
Crankshaft Position Sensor B Circuit Malfunction

Regarding the U0866 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.

U0866 OBD-II Diagnostic Network (U) Trouble Code Description

U0866 engine trouble code is about Crankshaft Position Sensor B Circuit Malfunction.

Main reason For U0866 Code

The reason of U0866 OBD-II Engine Trouble Code is Fuel Rail Pressure Sensor Circuit Malfunction.

U0866 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.