Help me let me explain what happened, I was driving on the highway and all of sudden the car just died on me w/o warning! I first thought opti(2nd one) and yes it was bad so I got a new one from GM, I have replaced the pcm, fuel pump, wires plugs, ingition control module, coil, waterpump before all of this, I have checked all the sensors and conections. I try to start it now and its like it is not getting any spark at all but it gets gas just fine. Its not throwing any codes right now (have a cable and labtop) So is it my ignition should i get a msd box any suggestions help I am currently borrowing a car and I have to replace a fuel pump in a van cause it just went bad. Thanks guys!

 

"like it's not getting any spark"? Is it or isn't it? Check for spark. Don't add anything to the system while you are trying to troubleshoot.

 

Shoebox, it is not getting any spark at all I am lost on this one.

 

well guys I am going to hit the hay cause its to cold around here! Shoebox do you think it could be the ign switch? The car is a Daily Driver and has 120,000miles see you all in the mornin--maybe I will get an early christmas present and the car will just start in the morning! LOL

 

See if you can do this test. It may help to pin down the problem.

 

You may think this stupid or strange...but is your intake on tight? I had the same problem and it was usually do to my intake shifting ang comming apart. Check the cars vaccums...could be a vacum related problem. When my car was doing that it was a Vacum leak on the intake. Didn't even register on the GM Tech 2 wierd hungh? Mainly because it broke loose from the engine vibrations ...but when it shut off it somehow shifted back into place. wierd...I know...but possible...yes...sounded very similar to your story.

 

could it be your opti harness?

 

I will try the opti test. I think the opti harness is just fine but who knows. I checked for leaks on the intake and it is just fine, I have started in before with the cai off so I do not think that is the problem. but thanks!

 

What about your coil? Have you checked that?