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U0546 Engine Trouble Code

Meaning of U0546 engine trouble code is a kind of network trouble code and when the check engine light comes U0546 code on the first you should check is the gas cap. Pull over, retighten it, and take a look at the cap to see if it has any cracks in it. Continue driving and see if the check engine light turns off. Alternately, you can purchase a gas cap for about $3 at an auto parts store. All you need to do is take the old one off and screw on the new one. If you've already made it to the store, you might as well just replace it. While not car-threatening, it's good to take care of this right away to improve gas mileage.

U0546 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 U0546 code is occuring now you should check U0546 repair processes.
Now don't ask yourself; What should you do with U0546 code ?
The solution is here :

U0546 Possible Solution:

U0546 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.

U0546 Code Meaning :

U 0 5 4 6
OBD-II Diagnostic Network (U) Trouble Code For Engine Intake Valve Control Solenoid Circuit Low Fuel Composition Sensor Circuit Malfunction Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector) Ignition Coil A Primary/Secondary Circuit Malfunction

The oxygen (02) sensors on your car measure the oxygen in the exhaust to determine how rich or lean the ratio of fuel and air are in the cylinders. Optimizing this mixture means better fuel economy and fewer exhaust emissions.

U0546 OBD-II Diagnostic Network (U) Trouble Code Description

U0546 engine trouble code is about Ignition Coil A Primary/Secondary Circuit Malfunction.

Main reason For U0546 Code

The reason of U0546 OBD-II Engine Trouble Code is Fuel Composition Sensor Circuit Malfunction.

U0546 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.