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P0866 Engine Trouble Code

Meaning of P0866 engine trouble code is a kind of powertrain trouble code and when your car's 'P0866 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off.

P0866 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 P0866 code is occuring now you should check P0866 repair processes.
Now don't ask yourself; What should you do with P0866 code ?
The solution is here :

P0866 Possible Solution:

P0866 Engine

The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. This causes the ignition coil to provide a spark and the injector to inject fuel into each cylinder at the right time.If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver.

P0866 Code Meaning :

P 0 8 6 6
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Intake Valve Control Solenoid Circuit Low Engine Oil Temperature Sensor Malfunction Cylinder 4 Contribution/Balance Fault Ignition Coil A Primary/Secondary Circuit Malfunction

Is the fuel pump sometimes not priming when you turn the key to ON(II)? Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. The mechanical timing is also something that you should check, as we mentioned above.

P0866 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P0866 engine trouble code is about Ignition Coil A Primary/Secondary Circuit Malfunction.

Main reason For P0866 Code

The reason of P0866 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.

P0866 the main thing to check is to verify the operation of the VCT solenoid. You're looking for a sticking or stuck VCt solenoid valve caused by contamination. Refer to vehicle specific repair manual to perform component tests for the VCT unit.