ok went racing then the next day came out started the car, backed it off the trailer, shut it off and now it wont start. ive checked for spark and nothing. i think its either the opti or comp! how can i test to see if its either or? i pulled the ecm conector and all the voltage is good there!

 

come on someone,,,,, i folowed shoebox's "http://shbox.com/1/4th_gen_tech2.html#opti_test" and im getting the 10v on the "a" and "d" terminals. but nothing on the "b" terminal. checked the plug goin into the opti and it looked good. so i think its the computer or opti. anyone know a way to test each one? i dont have access to a scanner and i did the paper clip jump and go no blinks,

 

Be sure you did the test on B while cranking and on an AC setting. Also make sure the connector is on the opti when you test. If you get nothing from B but something from A, According to Shoebox's website means you lost high res signal or your meter doesn't update fast enough. Are you using a digital multimeter? Also I would check the ignition fuse.

 

Borrow an OBD-I scanner and check it for codes. 93 was the last year you could short the ALDL connector to flash the codes. That will tell you if the optical cam position sensor has failed.