Surges at stoplights, backfires on decel
Surges at stoplights, backfires on decel
My 91 z surges when I'm stopped and in gear at stoplights. It also backfires a little on decelleration. Anyone know what my problem is? I have an adjustable fuel pressure regulator and thought maybe it's not Adjusted properly. What do you think?
Supreme Member
iTrader: (29)
Joined: Sep 1999
Posts: 1,410
Likes: 2
From: Location, Location!
Car: 92 T/A 'vert
Engine: Mild .040 over L98 4 bolt mains
Transmission: Mostly stock 700R4, 2600 Vigilante
Axle/Gears: LS1 3.42
Re: Surges at stoplights, backfires on decel
Vacuum leak/IAC?
Supreme Member
Joined: Apr 2010
Posts: 4,337
Likes: 29
From: Aurora, OR
Car: 87 IROC Z28
Engine: 355 cid TPI
Transmission: Custom Built 700R4 w/3,500 stall
Axle/Gears: QP fab 9" 3.70 Truetrac
Re: Surges at stoplights, backfires on decel
Is fuel pressure 45-50 KOEO?
Supreme Member
Joined: Apr 2010
Posts: 4,337
Likes: 29
From: Aurora, OR
Car: 87 IROC Z28
Engine: 355 cid TPI
Transmission: Custom Built 700R4 w/3,500 stall
Axle/Gears: QP fab 9" 3.70 Truetrac
Re: Surges at stoplights, backfires on decel
Yeah, I beleive factory on the 91 TPI is 45-50psi with no vacuum at the diaphram. You set it by unplugging the vac line with engine at idle or just KOEO.
Thread
Thread Starter
Forum
Replies
Last Post
