the car wont start and the check gages light comes on and stays on and fuel is half a tank i cant remember if it will go off when the car starts or what but ive changed the coil, module seems like little spark out of the plugs but i dont know if the spark is right how can i check the opti? i appreciate any help it is a 97 6 speed with plenty of work heads, cam, 11:1 comp., 355cid elec. water pump,

 

http://shbox.com/1/4th_gen_tech2.html#opti_test
that might help.
also, you can see if you're getting spark by taking the spark plugs out and reconnect them to the wires, and turn the key.

someone else that knows more will probably chime in

 

The check gauges light is on due to teh fact that the key os on without the engine running and there is no oil pressure.

as for the no start this link can guide you through checking for spark, fuel ect ect

http://mainstreamtopics.com/forum/in...p?showtopic=78