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U3927 Engine Trouble Code

Meaning of U3927 engine trouble code is a kind of network trouble code and when your car's 'U3927 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.

U3927 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 U3927 code is occuring now you should check U3927 repair processes.
Now don't ask yourself; What should you do with U3927 code ?
The solution is here :

U3927 Possible Solution:

U3927 Engine

Power Steering Pressure (PSP) Switch Malfunction In Key On, Engine Off Self-Test, this DTC indicates the PSP input to the PCM is high. In Key On, Engine Running Self-Test, this DTC indicates that the PSP input did not change state. Steering wheel must be turned during Key On, Engine Running Self-Test PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged.

U3927 Code Meaning :

U 3 9 2 7
OBD-II Diagnostic Network (U) Trouble Code For Engine Ignition System Or Misfire Injector Circuit Malfunction - Cylinders Turbocharger Boost Sensor A Circuit Low Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

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.

U3927 OBD-II Diagnostic Network (U) Trouble Code Description

U3927 engine trouble code is about Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical.

Main reason For U3927 Code

The reason of U3927 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.

U3927 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.