clogged cat?

[SLo_MKIII]

would a clogged cat cause the check engine light to come on?

[scttydb411]

possibly if it's obd2 for catalyst efficiency or secondary o2...probably less likely for obd1 or obd0.

what code are you getting?

[AnthonyF]

a clogged cat will also make ur car run like crap. It will have severe back pressure. Now, if it is a clogged cat u can do damage to the motor. So def figure out what the code is or if ur cat really is clogged.

[WhiteAccord]

What you need is some SeaFoam...