we are looking at a 1996 toyota avalon on craigslist. went and drove it and
really like it. It has a check engine light on and he has all the paperwork from
the dealer. dont remember what code was but it was from the cat converter. He
had an aftermarket cat put on it. Will that keep the check engine light on? I
was told i could get a dummy sensor but will that turn it off IF i have a cat on
it already? where would the sensor go?