[CamaroMike]

Hello, 98 Camaro 3.8L
How to test if catalytic converter is good/bad?
Also. Recommendation on spark plug brand/type.
Thanks for your time.

 

[coolmaro2001]

Hello, 98 Camaro 3.8L
How to test if catalytic converter is good/bad?
Also. Recommendation on spark plug brand/type.
Thanks for your time.

Hello , welcome to the forum.
If the catalytic converter is bad (clogged), your cars computer will let you know in a trouble code. ........... P0420

 

[CamaroMike]

Hello , welcome to the forum.
If the catalytic converter is bad (clogged), your cars computer will let you know in a trouble code. ........... P0420

Thanks for reply. P0420. Will be ready if we see that. Friend with super scanner is supposed to assist.
Looking for way to test exhaust system yielding signs to suspect CC. Pressure at O2 sensor/infared tmeter ???
Thanks for your help.