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U0678 Engine Trouble Code

Meaning of U0678 engine trouble code is a kind of network trouble code and when your car's 'U0678 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.

U0678 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 U0678 code is occuring now you should check U0678 repair processes.
Now don't ask yourself; What should you do with U0678 code ?
The solution is here :

U0678 Possible Solution:

U0678 Engine

Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.

U0678 Code Meaning :

U 0 6 7 8
OBD-II Diagnostic Network (U) Trouble Code For Engine Intake Valve Control Solenoid Circuit Low Fuel Temperature Sensor B Circuit Range/Performance Cylinder 10 Contribution/balance Fault Clutch Position Sensor 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.

U0678 OBD-II Diagnostic Network (U) Trouble Code Description

U0678 engine trouble code is about Clutch Position Sensor Circuit Malfunction.

Main reason For U0678 Code

The reason of U0678 OBD-II Engine Trouble Code is Fuel Temperature Sensor B Circuit Range/Performance.

Parts or components should not be replaced with reference to only a U0678 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.