Sometimes spark, sometimes no spark

[Nate_dogg]

About 3 months ago I had a spark issue, I replaced the CAS and that seemed to fix my problem. The car has been sitting a week since the last time I drove it, I went to drive it today and again no spark. So sometimes it will get spark, and sometimes it won’t. Has anyone ever encountered this?

AEM computer
Stock coil pack

Thanks a lot

Nathan

 

[pwnzer]

Not trying to be a dick, but have you checked your plugs and wires? How new/old are they? Have you checked to make sure the wires aren't nicked or anything?

 

[Detective Coating]

Have you checked the PT and CP connections along with the wires to see if there is a short within any of their wiring?

 

[ramsack]

look into some new coils. they can even test fine but still not work correctly. are you still using the power transistor? i don't believe they would act intermittent, either work or not.

 

[luv2rallye]

The PT can get intermittent if it develops a temperature issue. Heating it with a hair dryer while engine running usually brings out such a problem.

 

[Nate_dogg]

Thanks for your fast responses on my problem. I have now checked and changed the coil and the PT with no affect, then I did an ohm test on wires from the Pt to the computer, and they checked out good...then I put everything back together and it started right up. I am thinking my connector to my ECU is the culprit, since that was the last connector I messed with before it started up.

Thanks again

 

[pwnzer]

glad you figured out your issue, at least you didnt have to replace/do anything big or expensive

 

[widsmer]

Not trying to be a dick, but have you checked your plugs and wires? How new/old are they? Have you checked to make sure the wires aren't nicked or anything?

If one of them is nicked, would that cause no spark in the others?