ayers1967

Anyone know how to test the optispark ? Did all the test in the hayes repair manual and it says the distributor or igntion module is bad. it says to take it to a dealer for repair. I'm working on a transplanted 94 lt1 into a 67 camaro .
no dealer in the country would touch it. Any help would be great .


Thanks , ayers1967.

popstoy

1-did the how did the motor run before the swap 2-what are the symptoms

Mtrhds94Z

With the opti out, hook it up [to wire harness] and [making sure that the BODY[aluminum housing part of opti] of it is touching GROUND, via engine block, or use a jumper] spin it by hand with ign ON and:
1] listen for injector 'ticks'
2] it should 'spark' also..

That's a basic test that I use and then when its installed before replacing WP etc I run it a few minutes..
Can it still be 'bad'? yup... but it still is a helpful basic test..
I know of no other way short of an oscilloscope, etc to really test it..

ayers1967

It was a totaled car that it came out of. I know the ecm is good I had it tested and all the egr,vats disabled.

ayers1967

And it will not start . No spark from coil wire. The white wire from the ecm at the module has no paulse.


Thanks again.