Ping King

iTrader: (20)

Heres the deal. Drivers side cat is glowing red.

Car is cammed with mac's a carb intake and an elbow.

AF at idle is 15.0:1, trims are ranging from 1 to -3 on both sides. Only the drivers cat is glowing. Any thoughts?

Im thinking the cat just **** out on me. At first i thought it was a vacuum leak but my o2's would be going apeshit.

rpmauto

iTrader: (14)

Typically that is unburned fuel causing it to get way too hot, but if the trims and o2s look good, maybe something else.

Ping King

iTrader: (20)

ive been reading that a bridged or clogged cat can do the same thing. is there any truth to this?

99_SS_LS1

iTrader: (4)

a misfire (ie plug wire not on or bad plug) will cause this

BenLaz

iTrader: (6)

a plugged cat will definetly glow red...

Ping King

iTrader: (20)

im going to shoot the headers with an IR gun to see if one of the cyls is down.