Welcome, thanks for the donation, did you check for voltage at the pump with engine cranking? Other than the initial prime, the pump won't run without rpm signal. You can pull relay, use teslite at relay terminals, see how many hot terminals, engine cranking. The load side of relay gets voltage from ecm b fuse. Voltage for coil side of relay does come from pcm.
Saturday, July 27th, 2019 AT 10:11 AM