88 TBI Idles Rough/Stalls when Cold
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Joined: May 2007
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Car: 1991 Camaro RS Convertible
Engine: 305ci
Transmission: 4-Speed Auto
Axle/Gears: 2.73
88 TBI Idles Rough/Stalls when Cold
Any good starting points to check why my 88 Idles Rough and even stalls when cold, but given a five minutes or so straightens out?
It also smells like it's running extremely rich as well.
Thanks in advance,
Steve C - RI
It also smells like it's running extremely rich as well.
Thanks in advance,
Steve C - RI
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Joined: Dec 2006
Posts: 414
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From: Kitchener ON
Car: 1983 Trans-Am
Engine: 305 5.0 LG4
Transmission: 200C 3 Speed
Axle/Gears: 2.93 Open Diff
Re: 88 TBI Idles Rough/Stalls when Cold
Mine did this same thing, tried CTS and MAT, no change
Timing was 4.5* retarded!
Set it 4.5* (base) advanced
Its awesome now!
(Was only when it was cold to, pull up to a stop sign, it would almost stall then catch itself, and sputter when giving it the gasd, but get alot better when warm, all it was was timing)
Timing was 4.5* retarded!
Set it 4.5* (base) advanced
Its awesome now!
(Was only when it was cold to, pull up to a stop sign, it would almost stall then catch itself, and sputter when giving it the gasd, but get alot better when warm, all it was was timing)
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From: Manteca,California. Nor Cal.
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Re: 88 TBI Idles Rough/Stalls when Cold
yeah check that out.
Anthony R.-Killa cali
Anthony R.-Killa cali
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Joined: Mar 2004
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From: Kansas, where the wind howls
Car: 84 Z28 H.O. w/Megasquirt II
Engine: semi-stock L69
Transmission: T-5 non W/C
Axle/Gears: 3.73 open
Re: 88 TBI Idles Rough/Stalls when Cold
My TBI unit was leaking. It would slowly dribble down one barrel, as evidenced by the thick layer of black goo around that area. Just something to keep in mind.
It would hard-start when cold, miss slightly at idle when warm(but only at idle), and occasionally stall when car warmed up and super cold out.
QUOTE: "It also smells like it's running extremely rich as well."
Biggest clue right there. Make sure timing is correct(and ignition working properly!), and look for fuel leaks. No leaks?? Well, then I'd look at why the computer is dumping in more fuel than your need.
Or(worst case scenario), your engine isn't getting the air it's used to. Thats usually the hardest to fix.
It would hard-start when cold, miss slightly at idle when warm(but only at idle), and occasionally stall when car warmed up and super cold out.
QUOTE: "It also smells like it's running extremely rich as well."
Biggest clue right there. Make sure timing is correct(and ignition working properly!), and look for fuel leaks. No leaks?? Well, then I'd look at why the computer is dumping in more fuel than your need.
Or(worst case scenario), your engine isn't getting the air it's used to. Thats usually the hardest to fix.
Last edited by pizza_guy; May 18, 2007 at 12:00 PM.
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