Spark Issues 1 & 4

[brandonclum]

Ok guys after weeks and part after part I'm stumped so after a fresh rebuild I tried to start the car ran a little rough and wont rev past 2k rpm and it took for ever to get there. So i checked the spark with a tester 1 & 4 were not working at all so I replaced the wires still nothing then the coils figured that would be the problem just put everything back on its still not getting spark on 1 and 4 so now im thinking ECU but its newly redone (replaced all caps) timing is perfect i know im getting fuel. thinking the CAS thoughts???? O btw its a 91 turbo.

 

[schumy]

Simple but are the plug wires on the right cylinder?

 

[brandonclum]

Yes checked many times

 

[dsmcurse]

Have you checked the ignitor (transister)?

 

[brandonclum]

How do you test the ignitor

 

[miguelmcv]

Yeap, I'm agree with dsmcurse, Power transistor is your problem.

Here is a how to.

http://www.dsmtuners.com/forums/articles-electrical-wiring/229419-how-test-power-transistors.html

 

[luv2rallye]

If power transistors test good, suspect the CAS.

 

[brandonclum]

just found bad leaky caps could this be why???????

 

[steve]

so now im thinking ECU but its newly redone (replaced all caps)

just found bad leaky caps could this be why?

How could it be both?

 

[brandonclum]

thats a good question but the cap C44 cap in the ecu is leaking and the little white connector bridge deal right by it is corroded with the stuff i dont get it