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running just manifolds and y-pipe??

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Old Jul 8, 2003 | 12:14 AM
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CamaroEFI's Avatar
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From: Summerville, SC, USA
running just manifolds and y-pipe??

i just finished putting on new exhaust manifold gaskets and i noticed the cat was shot so i decided to take it off...now the car is running like sh**. would takin off the cat make a bad difference? i thought if anything it would help.
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Old Jul 8, 2003 | 01:26 AM
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kfoley's Avatar
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From: New Palestine, IN (Just East of Indy)
Car: '85 Z28
Engine: 305
Transmission: WC T5, 3.23 posi
Taking it off should make it run better if it was shot. Sounds like you have another problem. Could you explain what exactly it's doing?
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Old Jul 8, 2003 | 11:21 AM
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Mark A Shields's Avatar
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Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
a common mistake when doing such a repair is messing up the firing order of the plugs. recheck em, but like said, what exactly is the car doing?
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Old Jul 9, 2003 | 11:14 AM
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well, at a certain low RPM, im not sure what it is cuz my tach doesn't work, the car sputters. all i know is i need another cat cuz the car is too loud and it sounds like one of those ******* p.o.s trucks
thanks
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Old Jul 11, 2003 | 10:14 PM
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bigals87z28's Avatar
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From: Ocean, NJ
Car: Check The Sig
HEY... check the sig.... watch the ******* talk...
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Old Jul 13, 2003 | 12:58 AM
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CamaroEFI's Avatar
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i live in the sticks in south carolina so i think i have the to use the word *******. sorry you took offense to it.
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Old Jul 13, 2003 | 02:16 AM
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I doubt it has anything to do with the cat being gone. I would hazzard a guess that you did something unintentional and undesireable while doing the exhaust gaskets, like switching a couple of spark plug wires around, or something to do with the plugs or wires.
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Old Jul 13, 2003 | 09:34 PM
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From: Summerville, SC, USA
i think its the cap and rotor..i haven't changed it since i got the car, close to 2 years ago.
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