new fuel pressure regulator in, car runs great but hard to start?

crazy5.0 · 04-23-2002, 10:43 PM

I set the pressure at 37 vacuum disconnected. If anyone has followed my car problems I think the performance problem is fixed. Now the car has to be cranked for a 2-3 seconds before it starts and sometimes I have to crank it two times. I check all hoses and check for vacuum leaks with a guage and nothing. Should I raise the pressure? With the stock regulator the pressure was at 41psi,but started quickly, but ran like crap.

gtsr515 · 04-24-2002, 04:07 PM

Glad to see you didn't go crazy with pressure, is the fuel pump up to snuff? Injectors good?

chris91LX · 04-24-2002, 10:57 PM

You did plug the vacuum line on the fpr with your finger while you adjusted it right? If you did, then I would guess maybe your fuel pump as mentioned before.

sn95gt19 · 04-24-2002, 11:23 PM

i would say that it would be a timing prob, but im guessing you didnt mess with that. i guess just try setting it again, make sure you plug the vaccum line like earlier stated.

04-23-2002, 10:43 PM	#1 (permalink)
crazy5.0 Registered Member Join Date: Nov 2001 Location: Mission Viejo,Ca Posts: 37	new fuel pressure regulator in, car runs great but hard to start? I set the pressure at 37 vacuum disconnected. If anyone has followed my car problems I think the performance problem is fixed. Now the car has to be cranked for a 2-3 seconds before it starts and sometimes I have to crank it two times. I check all hoses and check for vacuum leaks with a guage and nothing. Should I raise the pressure? With the stock regulator the pressure was at 41psi,but started quickly, but ran like crap. __________________ 89gt,3.27's,Auburn,tremec 3550,Steeda tri-ax,aluminum driveshaft,Asp underdrives,Flowmast er 3 chamber,March ram air,130 amp alternator,Koni yellow struts,Kyb shocks,Pirelli p-6000's,MM's lower control arms and full length subs

04-24-2002, 04:07 PM	#2 (permalink)
gtsr515 Registered Member Join Date: Nov 2001 Location: Sunny, Hot, Sebring, Florida Posts: 725	Glad to see you didn't go crazy with pressure, is the fuel pump up to snuff? Injectors good? __________________ Remember...2nd place is 1st place for losers!

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04-24-2002, 10:57 PM	#3 (permalink)
chris91LX Registered Member Join Date: Oct 1998 Location: Suburban Chicago, Hanover Park Posts: 695	You did plug the vacuum line on the fpr with your finger while you adjusted it right? If you did, then I would guess maybe your fuel pump as mentioned before.

04-24-2002, 11:23 PM	#4 (permalink)
sn95gt19 motors done......woohooo Join Date: Mar 2002 Posts: 799	i would say that it would be a timing prob, but im guessing you didnt mess with that. i guess just try setting it again, make sure you plug the vaccum line like earlier stated.

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