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U0422 Engine Trouble Code

Meaning of U0422 engine trouble code is a kind of network trouble code and when the check engine light comes U0422 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.

U0422 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 U0422 code is occuring now you should check U0422 repair processes.
Now don't ask yourself; What should you do with U0422 code ?
The solution is here :

U0422 Possible Solution:

U0422 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.

U0422 Code Meaning :

U 0 4 2 2
OBD-II Diagnostic Network (U) Trouble Code For Engine Intake Valve Control Solenoid Circuit Low O2 Sensor Heater Circuit Malfunction Turbocharger Boost Sensor A Circuit Low Glow Plug/Heater Circuit 'A' 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.

U0422 OBD-II Diagnostic Network (U) Trouble Code Description

U0422 engine trouble code is about Glow Plug/Heater Circuit 'A' Malfunction.

Main reason For U0422 Code

The reason of U0422 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction.

U0422 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.