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U1145 Engine Trouble Code

Meaning of U1145 engine trouble code is a kind of network trouble code and U1145 if your catalytic convertor fails completely, you eventually won't be able to keep the car running. Your gas mileage will also be terrible, so you should try and fix it as soon as you can. Unfortunately, the average replacement cost is around $2,000 and you can't do it yourself unless you're an experienced mechanic.

U1145 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 U1145 code is occuring now you should check U1145 repair processes.
Now don't ask yourself; What should you do with U1145 code ?
The solution is here :

U1145 Possible Solution:

U1145 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.

U1145 Code Meaning :

U 1 1 4 5
OBD-II Diagnostic Network (U) Trouble Code For Engine Fuel And Air Metering Fuel Rail/System Pressure - Too High Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector) Crankshaft Position Sensor B Circuit Malfunction

The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate.

U1145 OBD-II Diagnostic Network (U) Trouble Code Description

U1145 engine trouble code is about Crankshaft Position Sensor B Circuit Malfunction.

Main reason For U1145 Code

The reason of U1145 OBD-II Engine Trouble Code is Fuel Rail/System Pressure - Too High.

U1145 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.