glowing cat
#2
Registered User
unburned fuel causes the converter to glow red. since you just did the exhaust, check into your o2sensor and make 100% sure it's still hooked up.
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#15
Registered User
When was the last time plugs, wires, cap, rotor were changed? As others have mentioned the most likely cause is unburned fuel. You don't really want to keep driving it till you figure it out or you stand a high chance of melting the internals of the convertor, resulting in a clogged convertor.
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