Hello. I have a 1995 Ford Taurus, and I just swapped in a new engine from a donor from 2000. The engine is a Flex Fuel 3.0L Vulcan OHV.
I’ve got a wealth of background knowledge as a mechanic [5 years+] and an electrician [4 years+]
I have swapped over everything required to make this work, in theory. I swapped exhaust, fuel system, and computer/harness and all the relays to go with it. I also made a custom gauge cluster from a 2000 Taurus as well.
Well everything works just peachy, all the wiring for the most part is correct minus a few buzzing relays that I just need to work out. The main issue this [now monster in my eyes] has is the PCM is not telling the FPDM to tell the Fuel Pump to start. Turn key, and no 3 second startup. I’ve checked the fuel pump, and it’s fine. I replaced the PCM and that didn’t solve it. I have the security system from the 2000 in there as well, thinking that was an issue. I also have the emission sensors and canisters installed, just like you would see in the 2000.
I’m at my wits end trying to figure out why the PCM isn’t sending voltage out to the FPDM. I had to of missed something along the way but I double checked and still can’t find anything. I would love if someone can steer me in the right direction to get this working properly. Any help is appreciated!!!