Thank you for your response. Yes the pumps do report the appropriate % response when being adjusted. Your guess that the pump return signal is a possible suspect is a good suggestion. I’ll start with inspection of the wires from the pump to the PCM and see if any of them are suspect or have...
Hiema, I too thank you for taking the time to post how to operate the pumps with forscan. I tried it out and was able to make all three of the pump function properly, but I am still getting DTC P2601 (pump "A" control module stuck/off) Do you have any suggestions what I might check on next...