The cat, when bad, will rattle when you smack it when cold. You don't want to smack it with something that will damage it however.

also its a 92 i would have to take it to the dealers to get it scanned and the charge way to much like 75 bucks

You may be better off searching craigslist for a OBD1 scanner. Then your set any time you need it.

Here'* an option for you. https://www.gmforum.com/specifications-general-information-132/obd1-codes-retrieval-gm-1983-95-cars-trucks-%2A%2A-278820/

you know i hadn't even thought of getting one of those for myself man i feel slow

You do know autozone reads ob1 and also you can jump it with a paper clip and read the flashes to determine the code..buddy had similar issue in his blazer..turned out to be his cat i replaced it and boom she ran great no probs

really i didnt know they could read obd1 every time went there they told me my car was to old

They used to scan my 87 camaro.......and i was in a week or so ago with Bo(Bo58Gardner) and while there i asked if they could scan ob 1.5 and he said no just 1 and 2

cool thanks appreciate the info about autozone

the autozone here wont do it they tell me to do it with a paperclip