need LS1 Help, wont start

turns over great, does not fire.

checked fuel, ok
checked spark, no spark

this is a 99 TA

it started being hard to start but eventualy it woudl catch. But all the suddedn now it just wont go. Ive been fighting with it for the last 2 days, this is ****ed up, its completely stock and it is suppost to be my "new reliable car".

What can cause it to not have spark?

someone gimme a list of things to check?


Thanks in advance.

Pull the codes. The ignition is controlled by the ECM. Find out if you have any spark, or if all 8 coils are non-firing. I will keep thinking......

Check all the fuses in the fuse panel! If the fuse for the ECM blew, the computer won't be doing its job anymore;). Just a thought 'cause I know it happened to my friend's Sunfire one time...........he was ready to call a tow truck but he called me first and asked if I could have a look at it.........it was just a stupid FUSE not letting the car start!?:rolleyes:

Maybe that's not your answer, but it's something to check. Then obviously you've gotta check all electrical connections in and around the plug wires, to/from the ECM, etc.

already checked that stuff. not that. :(