broke down.. no spark.

[Rengar18]

Alright so I was driving home last monday, was going about 30 mph about to shift into 3rd and I got a nice JERK someone like boost cut jerk and the rpms went down to 0 but it felt as if the car was still on (not 100% on that happened real fast) I tried to give it some gas and nothin and I just coasted to the side of road. Tried to start it and it jst cranks.

Towed it home and found I do have fuel (fuel pump turning on, fuel in the rail) but no spark. Not getting any spark with the spark plug on VC test in all coils. Checked the ignition coil harness where you put the connector in with a test light and nothing. Did a compression test and came out right. Checked the coil pack, spark plug wires and bought new spark plugs and a new power transistor and still no spark.

Also checked the CAS/CPS by seeing if the blue wire in both connectors had any voltage, both checked out good. Also swapped my ecu twice and same thing. Not really sure what to test/go from here. Looking to have it towed AGAIN to a shop this week to figure this out cause im out of ideas.. Hope yall can help thanks.

 

[MichaelSuch]

Did you test the resistance between each coil on the coilpack?

Check this thread

 

[DSM_IKE]

check the icm? (ignition control module) mine went out on me and did pretty much the same..

 

[Rengar18]

Yes as stated above ive checked the ignition coil and it came out good (plan to replace the coil pack tomorrow to see any chanes) and I already bought and replaced it with a new ignition module (power transistor).

 

[AllWheelRS]

Not quite sure, but is there a better test for the CAS?

 

[Rengar18]

Not quite sure, but is there a better test for the CAS?

Well I did all the cas/crank sensor test listed here http://www.dsmtuners.com/forums/new...art-no-fuel-prime-no-spark.html#post151265626

and they came out good. Not sure what else to test/replace from here.

 

[Rengar18]

Looks like my crank pulley was a bit loose and pretty much destroyed my crank sensor. Replacin now, all is well.

 

[zanderson]

I had the same problem with my Icm, It just keep coming unpluged. I dont think it would be the CAS, that should cut fuel too.

 

[Rengar18]

It probably did cut fuel tbh. The only real test I did on fuel was manually turn on my fuel pump with my tuning software and checked to see if fuel was in the rail. When I attempted to start the car tho I couldnt here the fuel pump turn on at all.