I have a 1991 Pontiac Bonneville SE. I am having a problem with it not starting. I replaced the starter and now the only thing it does is it turns over but it does not fire...I am wondering it it would be my timing chain, or did my camshaft break....then could it be any of my sensors...any help would be greatfull...thank you

 

Start by checking the links in my signature file for some ideas. Tell us what you find.