P1641 Engine Code Repair
Meaning of P1641 engine trouble code is a kind of powertrain trouble code and P1641 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 $2,140 and you can't do it yourself unless you're an experienced mechanic.
P1641 Fault Symptoms :
- Check engine light comes on
- Engine stalling or misfiring
- Engine performance issues
- Car not starting
If one of these reasons for P1641 code is occuring now you should check P1641 repair processes.
Now don't ask yourself; What should you do with P1641 code ?
The solution is here :
P1641 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.
P1641 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)
1
Shift Solenoid E Performance or Stuck Off
Is the fuel pump sometimes not priming when you turn the key to ON(II)? Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. The mechanical timing is also something that you should check, as we mentioned above.
P1641 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP1641 engine trouble code is about Shift Solenoid E Performance or Stuck Off.Main reason For P1641 CodeThe reason of P1641 OBD-II Engine Trouble Code is Fuel Composition Sensor Circuit Malfunction. |
P1641 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.