i saw what you did there!
Join Date: Sep 2002
Location: Lincoln IL
fast68chevy is offline
Re: fuel pump and passlock
GM didnt use a cut off switch
instead GM uses the oil switch on the engine
if you dont have full 12 volts in the gray wire back at the tank then you got bad relay or bad FP wire along frame rail
do you have a full ground wire and a full 12 volts hot wire all times at the relay?
if not then you need to fix that
many different vehicles parting out, engine underhood dash electrical and more parts! cars, trucks, fords, chevies, etc. - text me 217 671 7792 anytime! Own: '54 F350 dually, '54 & '57 F100's, '57 Bel Air gasser, '68 Corvair Monza 'vert. '72 Chevelle SS HT, '82 K10 SF, '85 Elky SS 310ci, '93 C1500 4.3L Z
Last edited by fast68chevy; 12-04-2010 at 07:42 PM.