Fuel supply problem after engine swap | Ford Explorer Forums - Serious Explorations

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Fuel supply problem after engine swap

93explorer666

Member
Joined
September 13, 2006
Messages
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City, State
BARRIE, ONTARIO, CANADA
Year, Model & Trim Level
1996 Mazda B-? now
Hey everyone

I just did a 4.0l sohc 99 engine swap into a 1996 ranger I removed the antitheft from behind the air bag and use all the wiring out of the explorer except the fuel because it is a returnless line system so I caped off the return on my plastic tank and wired and change the pump to the 99

I am having issuses with starting it
I only get 6.79 volt on the middle terminal at relay and that same voltage at the pump

Could the computer be holding me back

Please if some one can help
Only thing keeping me from completion on my build

Thank you
 






are you using the 99 ecu?
 






Yes I am and I also have a SCT tuner from James henson and we are reprograming the ecu
 






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