P1645 Engine Code Repair
Meaning of P1645 engine trouble code is a kind of powertrain trouble code and when the check engine light comes P1645 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.
P1645 Fault Symptoms :
- Check engine light comes on
- Engine stalling or misfiring
- Engine performance issues
- Car not starting
If one of these reasons for P1645 code is occuring now you should check P1645 repair processes.
Now don't ask yourself; What should you do with P1645 code ?
The solution is here :
P1645 Possible Solution:
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.
P1645 Code Meaning :
P
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine
1
Fuel And Air Metering
6
Fuel Composition Sensor Circuit Malfunction
4
Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
5
Timing Reference High Resolution Signal A Too Many Pulses
The poor running symptoms are consistent with a MAP sensor malfunction. In addition, in some cases, a bad MAP sensor will not throw a code. Again, the ELD code likely represents a separate wiring issue.
P1645 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP1645 engine trouble code is about Timing Reference High Resolution Signal A Too Many Pulses.Main reason For P1645 CodeThe reason of P1645 OBD-II Engine Trouble Code is Fuel Composition Sensor Circuit Malfunction. |
P1645 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.