85 IROC-Z CAR ACCELERATES FROM STOP ROUGH. HELP PLEASE
85 IROC-Z CAR ACCELERATES FROM STOP ROUGH. HELP PLEASE
Had a few running issues early. Car was spittng on pass side. But it went away. My issue now is lack of power from idle. its seems to shake idling. hit the gas and normal accelerating is rough. if i go WOT from start, it won't burn rubber, will accell rough, but then around 20 mph tires will let loose. ihave new: plugs gapped at .045, wires, accell super coil, ignition module, cap rotor, throotle body cleaner, stp fuel injection cleaner, and just had timing set correctly. Any ideas? I'm lost.
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Joined: Jan 2007
Posts: 144
Likes: 0
From: Phoenix, AZ
Car: 1985 Z/28
Engine: L98 Carbed
Transmission: T5
Axle/Gears: 9 Bolt Posi 3.45
Since you have pretty much all your ignition components new, it seems like it is fuel related. Are you getting any trouble codes?
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Joined: Feb 2007
Posts: 190
Likes: 0
From: Pittsburgh, PA
Car: Cobalt SS/SC and 88 IROCZ
Engine: 383 TPI
Transmission: 700R4
Axle/Gears: 3.73 Eaton Posi
i had that problem and one of my spark plug wires touched my headers and burned through and it was causing an arch
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iTrader: (1)
Joined: Jun 2006
Posts: 423
Likes: 0
From: Lubbock, Tx
Car: 1991 Camaro Z28
Engine: L98 5.7 350 TPI
Transmission: Brand New (again) 700r4
Axle/Gears: GM 10 bolt 7.625 W/ TrueTrac 3.23
This is the same problem i am having problems with. I have to check for a burnt wire.. .thanks.
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Joined: Jul 2003
Posts: 10,532
Likes: 204
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Definitely sounds like a bad mixture. Fuel pressure sounds good, but how about your fuel injectors? I know you mentioned that you added cleaner, but this can sometimes do more harm than good. Are they the stock ones? Try removing them, and cleaning them thoroughly (might be clogged)...
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