93 grandprix Catalytic converter glowing

[ronaldgtp]

hi my 1993 grandprix 3.1 was running fine all off a sudden it lost power ,converter was glowing red hot. change converter still no power and exhaust sound weird before and after new converter. call idles fine but still no power.will a bad spark plug wire make the converter glow.

 

[Thunderturd]

Might be clogged and the friction would cause it to glow.

 

[VictorSmalls]

sure sounds clogged to me.

 

[ronaldgtp]

hi it turn out to the ignition control model one coil was not fireing all the time.thanks.

 

[VictorSmalls]

That could make sense. Thus dumping fuel into the exhaust that was burning up in the cat. Good work figuring it out.

 

[a98gtp4u]

just hope that all that fuel dumped in it didnt actually damage the cat now.