Engine cranks, but no spark, im stumped Options

[hitcachi]

Well for a little over a week now the Celica has been down. As the title says, it cranks normal but i have no spark. I have replaced so far, the timing belt (because thats what i thought it was at first before i checked for spark), distributor, ignition coil, and igniter. All fuses are good. Very expensive so far and I'm getting frustrated because its still not getting any spark. Reading some past posts, it might be the Starter relay, i haven't replaced that, but i don't know how to test it before just going out and buying a new one. If anyone can offer any suggestions or help i would really appreciate it. Thanks.

[trdproven]

Rare case but if you checked everything out ok then it may be your computer box. I know one way to test the computer box is if you perform an onboard diagnostic it does not give you any error codes because how can a defective computer box give you any error codes to begin with.

Also along the lines, if you push start the car and it turns on, then you might want to check the clutch switch.

Good luck, I am just trying to throw some ideas at you real quick.

This post has been edited by trdproven: Apr 19, 2008 - 1:12 PM