hey guys..im new here..i thought i had a fuel pump issue..now im not to sure..i been reading some of yalls previous posts..i checked fuel relay..its good..replaced anyways.tested ground in fuel relay..ground was bad..tho i thought.disconnected ecm..now ground is good..used obd 1 got codes 113,565,542..i can not find the secondary fuel circut..tested pins 1,6,37,57,40 and 60..everthing works..when i put ecm back in all the things that didnt work still dont work...any suggestions?

 

is the pump not running? have you checked the inertia switch behind the passenger side kick panel?

 

no..im not getting enough volts to the pump due to bad ground when ecm is pluged back .in...i have eliminated the inertia switch a couple years ago..

 

for 95, pin 6 is for the vss, it wouldnt have anything to do with the fuel pump.

113- act sensor circuit open or reads -40*f
565- canister purge circuit failure
542-fuel pump secondary circuit failure.

what engine do you have and is it california emmisions or federal? it makes a little bit of a difference with the wiring diagrams in my chiltons manual.

 

i have a 302 non cali..i ran a hot wire straight to the pump worked for a few then died..i think my pump is bad..its only bout a year old..i know they can go bad anytime..

 

my chiltons manual shows that the canister purge valve and fuel pump relay use the same power circuit. i'd get a chiltons or haynes manual so you can trace the circuit. did you check to make sure the pcm is grounding the fuel pump relay?

 

yea i got ground to the fuel relay..got 12volts to each hot side of relay.im pretty sure i have a bad fuel pump