hard throotle spuddering need help
Thread Starter
Cruising
Joined: Oct 2004
Posts: 14
Likes: 0
hard throotle spuddering need help
On hard accellaration the car sputters like its bogging down until it catch's then pulls hard all the way. Whats wrong fuel filter or electical. Need help it's 94 all original LT1..
Le Mans Master
Joined: Feb 2006
Posts: 8,753
Likes: 9
From: Louisiana
Lets start with the easy stuff. Is or has the SES light come on lately? It could be many things. With a little more info and as bogus stated, maintenance history on things you have done to narrow things down, it shouldn't be too difficult to get on the right track.
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Sounds like the fuel delivery can't respond fast enough to keep up with the air when you open the throttle blades quickly and leans it way out. Does it work ok under WOT if you get there gradually?
If so, its probably not a fuel pump or pressure problem, but something else like TPS or O2 or MAF/MAP that determines the injector pulse width.
Fuel pressure problem is the easiest to check though.
If so, its probably not a fuel pump or pressure problem, but something else like TPS or O2 or MAF/MAP that determines the injector pulse width.
Fuel pressure problem is the easiest to check though.
