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U1811 Engine Code Repair

Meaning of U1811 engine trouble code is a kind of network trouble code and when your car's 'U1811 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.

U1811 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 U1811 code is occuring now you should check U1811 repair processes.
Now don't ask yourself; What should you do with U1811 code ?
The solution is here :

U1811 Possible Solution:

U1811 Engine

Air Conditioning Pressure Sensor (ACP) Insufficient Pressure Change Each time the A/C clutch engages, the PCM is looking for a pressure change in the refrigerant. If the change in pressure is outside of the calibration the DTC will set. A/C system mechanical failure Open ACP or VREF circuit A/C sensor damaged A/C system electrical failure A/C clutch always engaged Verify A/C system function, including refrigerant charge.

U1811 Code Meaning :

U
OBD-II Diagnostic Network (U) Trouble Code For Engine

1
Fuel And Air Metering

8
Fuel Rail Pressure Sensor Circuit Malfunction

1
Cold Start Injector 1 Malfunction

1
Shift Solenoid E Performance or Stuck Off

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.

U1811 OBD-II Diagnostic Network (U) Trouble Code Description

U1811 engine trouble code is about Shift Solenoid E Performance or Stuck Off.

Main reason For U1811 Code

The reason of U1811 OBD-II Engine Trouble Code is Fuel Rail Pressure Sensor Circuit Malfunction.

U1811 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.