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U1331 Engine Trouble Code

Meaning of U1331 engine trouble code is a kind of network trouble code and U1331 code can be about replacing a broken oxygen sensor can eventually lead to a busted catalytic convertor which can cost upwards of $2,200. Taking your car into a shop will cost you around $210 depending on the car. However, an oxygen sensor is easy to replace on many cars and is usually detailed in the owner's manual. If you know where the sensor is, you only have to unclip the old sensor and replace it with a new one. Regardless of how you approach it, you should get this fixed right away.

U1331 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 U1331 code is occuring now you should check U1331 repair processes.
Now don't ask yourself; What should you do with U1331 code ?
The solution is here :

U1331 Possible Solution:

U1331 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.

U1331 Code Meaning :

U 1 3 3 1
OBD-II Diagnostic Network (U) Trouble Code For Engine Fuel And Air Metering Throttle/Pedal Position Sensor/Switch A Circuit Intermittent Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector) Crankshaft Position Sensor A Circuit Low Input

Regarding the U1331 code, it would probably be worthwhile to carefully inspect the wire harness near the intake manifold bracket. This is done most easily from below the car in the area near the oil filter.

U1331 OBD-II Diagnostic Network (U) Trouble Code Description

U1331 engine trouble code is about Crankshaft Position Sensor A Circuit Low Input.

Main reason For U1331 Code

The reason of U1331 OBD-II Engine Trouble Code is Throttle/Pedal Position Sensor/Switch A Circuit Intermittent.

U1331 DTC reports a sensor fault, replacement of the sensor is unlikely to resolve the underlying problem. The fault is most likely to be caused by the systems that the sensor is monitoring, but might even be caused by the wiring to the sensor itself.