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P1640 Engine Trouble Code

Meaning of P1640 engine trouble code is a kind of powertrain trouble code and P1640 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.

P1640 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 P1640 code is occuring now you should check P1640 repair processes.
Now don't ask yourself; What should you do with P1640 code ?
The solution is here :

P1640 Possible Solution:

P1640 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.

P1640 Code Meaning :

P 1 6 4 0
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Fuel And Air Metering Fuel Temperature Sensor B Circuit Range/Performance Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector) Shift Solenoid E Performance or Stuck Off

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.

P1640 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P1640 engine trouble code is about Shift Solenoid E Performance or Stuck Off.

Main reason For P1640 Code

The reason of P1640 OBD-II Engine Trouble Code is Fuel Temperature Sensor B Circuit Range/Performance.

P1640 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.