14th Oct 2014, 01:34

It could be the carb or its CCC module acting up on you. It could also be the emissions hoses and tubes too, especially on an Olds 307. On these cars, a check engine light can mean many things; more so if it's been sitting for a while.

14th Oct 2014, 02:18

Buy a service manual for it. It'll tell you everything you need to know about why the "check engine" light is on. Or take it to the auto parts store and let them run a scan on it.