89MustangMan

hey guys, sorry i took so long to get back... this is what i have found out so far:

I have changed the computer...I put in an A9P, the origional was an A9L but i really don't think that's a big deal, i was looking on Ebay and more than one person claims it works with either a 5-spd of automatic.

I changed the fuel pump relay under the drivers seat. The only thing i don't understand is that they gave me one that has an extra pong in it, im not too sure if that matters or not.

I changed the relay under the pass side dash, it's right near the computer.

I have set and reset the enursha switch

I have changed the ignition switch

And finally i have even gone as far as taking out the gas tank to test the pump!

Is there something else this could possibly be? Its driving me crazy, when i was in the store buying new relays the guy pulled up some gas cut off switch? im not really too sure where that would be and if this would maybe be my problem.... Please help! thanks guys i really appreciate all of your imput...Nick

nemethjames1

the gas cut off switch is the inertia swtich, it cuts off power to the fuel pump.... my inertia switch went out on me, so i just took it out and ran it direct.... i hated having to reset it when i got sidways anyways

roundman

NOT TOO BRIGHT AN IDEA! now if you're in an accident the fuel pump can continue to run and the resulting fire could burn your *** up big time. the inertia shutoff switch if one of the few safety innovations that I don't have any problem with keeping on mine! Any car with an electric fuel pump is required to have one I believe by federal law. the switch is relative cheap if you value your life at all. replace it dude!

mislead

I got a quick question, my fuel pump relay won't turn on unless i ground the eec port test then it continues to run. Does this mean my eec is bad?

88BlueGT

Is that chart 93 specific since its SEFI?

LTnone

pimpinstang1

i need help too!!!!!!!!! wont start no noise from the pump!!!

86 5.0L

check the reset button in the trunk/hatch under the back panel

then the relay under the drivers seat should click once when you turn the key to ignition