fuel pump and spark working when it wants too wtf help please
 

had the fuel pump priming had spark then nothing wtf im trying to do a mpfi swap and no its not the grounds no its not the main relay and no its not wiring all have been check by two people many times

Re: mpfi swap gone bad
 

You sure all the grounds are hooked up?Thermo housing,tranny etc.You check for power going to the main relay,starter etc?Start double checking everything you know is good it normally comes down to something you are %100 sure is good.Take your multimeter and a check list and start working through the whole car eliminating one thing at a time.

Re: mpfi swap gone bad
 

yea the start only gets .75v at the soliniode but has 12v and the ignition

Re: mpfi swap gone bad
 

its a ground. clean the ground connectors and make sure all the grounds are there. you def. need the tranny, valve cover, thermo (fuel pump), and injector grounds.

Re: mpfi swap gone bad
 

would bad injector grounds make the fuel pump not work

Re: mpfi swap gone bad
 

ok i had spark and fuel pump working and then all of a sudden neither work and i tested the main realy its good i dont know wtf going on but the ignition is ---- up for sure i hotwired it then unhotwired it and now the starter works