I jus recently had a no spark problemt and i did some part swaping with a friend and we figured out it was the ecu... Well i replaced the ecu and it ran great but after abotu 3 start ups the car would not start again and once again NO SPARK... and once again its the ECU. What is causeing this problem and what should i do about it this is an exdpensive problem???

 

did you upgrade your fuel injectors?

 

No i did not... But would that have anything to do with a no spark problem coming form the ecu??

 

I wouldnt think so. I personally think theres somehting else at work here besides the ECU. Do some sherlock work and try to find another source.

 

i didnt know sherlock holmes worked on cars lol

 

shorted out ignition control module, ignitor for short. Try replacing that, im in the same problem myself. I'll let you know.

 

My bad reason I asked was if he switched to low impedance injectors (from stock Hi-impedance) it might have made the ECU malfunction.

 

Is ther anything i can do besides replacing the whole ecu??? Because everything else seems to work it jus wont allow the car to spark... I jus dont wanna pay for another ecu if i have other options..

 

check main fuse block? grounds?

 

How do you know it's not a bad coil???
Or that you just arent grounded???