engin light comes on Options

[Dragondog]

my engin light comes on sometimes then other times its off i took it to auto zone the say car is to old to connect comp. to they say i need to spen bout 75 for a diag. im not going to spend that much just to find it was an oxegen senser....witch is what i think it is car runs great....also has an open exahust if that makes a diff...if any one has info to what i could be plz tell so i can get on it i hate seeing engin lights

[Dragondog]

this wont short anything out or damage anything?..............is adjusting my timing only good if i use a higher octain fuel? what if i adjust timing and dont get higher gas...what other side effects is there if i tamper with this, thinking bout setting to 15........what is 91 fuel and up, where can i get it, all i know is unleaded, med unleaded, sup unleaded...i dont have a clue what the numbers mean......what would be the best to set it to i have a 2.2l from a 94 gt............and what is obd-1 and obd-2

edit: sorry for all the quistion...i thought i knew alot about cars but you guys make me feel lower then an amature......i just know how to take em apart and put em back together

This post has been edited by Dragondog: Jul 25, 2007 - 5:33 AM