Can a clogged cat cause a lean condition?
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Joined: Jun 2001
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From: NYC
Car: 1991 Formula
Engine: 5.0 TPI
Transmission: T-5
Can a clogged cat cause a lean condition?
Eversince my cats started making noise, my car has been running like s**t. I pulled my plugs and they were all white.
White=lean no?
White=lean no?
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Joined: Oct 2002
Posts: 9,067
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From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
I dunno about making it run lean, but it could be stocking up ALOT of heat in the pipes and manifolds before the cat.
If you gutted the cat, that could make it run lean because of less back pressure to reverse the unburned fuel
If you gutted the cat, that could make it run lean because of less back pressure to reverse the unburned fuel
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