C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Clogged cat & bad idle???

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Old 09-22-2003, 04:34 PM
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CarAteMyMoney
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Default Clogged cat & bad idle???

Anyone ever have a clogged cat (O2 sensor side) and the idle get pretty bad?
Old 09-22-2003, 05:12 PM
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vader86
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Default Re: Clogged cat & bad idle??? (CarAteMyMoney)

that could screw up your idle, yes
Old 09-22-2003, 11:29 PM
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Siveck
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Default Re: Clogged cat & bad idle??? (vader86)

....and make your exhaust manifolds glow red :eek: .
Old 09-23-2003, 07:42 AM
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Default Re: Clogged cat & bad idle??? (CarAteMyMoney)

A clogged cat will force inert gasses back into the combustion chambers and lower the vacuum in the engine.

Not only will it not idle, the power will take a s**t.

If it only idles crappy but has plenty of power, I would look at the throttle body first. :thumbs:
Old 09-23-2003, 10:10 AM
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jodyeastman
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Default Re: Clogged cat & bad idle??? (CarAteMyMoney)

It happened to me. Thought the car would suht off at idle it was so bad.
Old 09-23-2003, 04:11 PM
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Default Re: Clogged cat & bad idle??? (Q1KSLVR)

what about the throttle body? i just took it off and cleaned it about a month ago..

..what should i check on it?
Old 09-23-2003, 06:14 PM
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Default Re: Clogged cat & bad idle??? (CarAteMyMoney)

what about the throttle body? i just took it off and cleaned it about a month ago..

..what should i check on it?
Remove and clean TB and IAC especially, check TPS settings.
Check for vacuum leaks.

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