jlglr4
Full Access Member
These codes were not in the screen shots on your earlier posts - these are “p” codes and should not be ignored as I suggested before for the “u” codes.
I can’t think of any reason the fuel temp sensor would have any relation to the engine coolant temp sensor. These both look like they could be circuit codes, i.e., problem with the wiring. I’m not familiar with the locations of the sensors on this engine (4.4L V8?), but I think its a fuel rail temp sensor, so both are engine compartment. Since you had some work done on the coolant system, I’d check to make sure the two plugs are not crossed - some of these sensors share the same plug and there have been situations where people have crossed up the plugs. Not sure if that‘s a possibility here or not. Otherwise, I’d start with replacing the sensors.
I can’t think of any reason the fuel temp sensor would have any relation to the engine coolant temp sensor. These both look like they could be circuit codes, i.e., problem with the wiring. I’m not familiar with the locations of the sensors on this engine (4.4L V8?), but I think its a fuel rail temp sensor, so both are engine compartment. Since you had some work done on the coolant system, I’d check to make sure the two plugs are not crossed - some of these sensors share the same plug and there have been situations where people have crossed up the plugs. Not sure if that‘s a possibility here or not. Otherwise, I’d start with replacing the sensors.
