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U3506 Engine Trouble Code

Meaning of U3506 engine trouble code is a kind of network trouble code and when your car's 'U3506 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.

U3506 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 U3506 code is occuring now you should check U3506 repair processes.
Now don't ask yourself; What should you do with U3506 code ?
The solution is here :

U3506 Possible Solution:

U3506 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.

U3506 Code Meaning :

U 3 5 0 6
OBD-II Diagnostic Network (U) Trouble Code For Engine Ignition System Or Misfire Fuel Composition Sensor Circuit Malfunction Cold Start Injector 1 Malfunction 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.

U3506 OBD-II Diagnostic Network (U) Trouble Code Description

U3506 engine trouble code is about Ignition Coil A Primary/Secondary Circuit Malfunction.

Main reason For U3506 Code

The reason of U3506 OBD-II Engine Trouble Code is Fuel Composition Sensor Circuit Malfunction.

U3506 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.