No spark on my turbo swap. suggestions?

[ihatejoefitz]

I've read and followed most of bumble zee's guide. (I'm just temporarely running my fuel pump through a switch instead of the switched relay)

 

The starter turns over, I'm getting fuel through the rail, the test light is lighting for the switched 12v to the ignitor; Whats left to check? Are there any specific wires to the ECU I should be checking for power?

 

Talk about angst!

 

Btw, it's an 81zxt engine going into a 72.

 

Thanks,

joe

[savageskaterkid]

does your Ignition control module work? If not you can use a I/c from a 77' corvette.

[ihatejoefitz]

I started the engine right before I pulled it from the donor, so everything should be good.

[savageskaterkid]

should be is one thing, but my I/C module went bad overnight

[ihatejoefitz]

true, i'll check it out.

[big-phil]

I went through 2 CAS crank angle sensors. when its bad there is no spark!

[Z-Gad]

Check and see a couple of things...

1. There should be a green light in the ecu when the key is in the "ON" position

2. Make sure youu are getting 12 volts when cranking as well. I remember, way back when, I had power to the ignitor and injectors when the key was in the on the ON position, but no power when cranking.

Regards,

Mike

[ihatejoefitz]

I went through 2 CAS crank angle sensors. when its bad there is no spark!

 

Holy hell! Anyone know where I can get one for less than $400!?

http://www.partsamerica.com/ProductList.aspx?parttype=762&ptset=A&searchfor=Crank+Position+Sensor

 

Check and see a couple of things...

1. There should be a green light in the ecu when the key is in the "ON" position

2. Make sure youu are getting 12 volts when cranking as well. I remember' date=' way back when, I had power to the ignitor and injectors when the key was in the on the ON position, but no power when cranking.

Regards,

Mike[/quote']

 

I had no idea there was a light on it. It will be very comforting to see it lit up, haha. (crosses fingers)

[big-phil]

The first CAS was on the block, like your 81? right?? When that went bad I got the dizzy from an 82-83 and the oil pump shaft. I would search e-bay, or go to junk yards and switch to the newer dizzy style CAS and you have to have the oil pump shaft as well!!

[ihatejoefitz]

I've already got the 83 dizzy, pump and shaft... the whole engine actually.

 

searching I found this post http://forums.hybridz.org/showthread.php?t=99313&highlight=81+83+distributor Which in short makes it looks complicated and risky. (talks about frying ecu's!)

 

but if you could fill me in with the details, I've got all the parts.

 

thanks

[big-phil]

Hmmm. All I did was get the 82-83 dizzy and shaft, put it in, plug the CAS connection in and start the car. I think I have the 81 harness since it had the external CAS on the car. Unless they had the external CAS on later years then I have the 81 harness with an 82-83 internal CAS dizzy just plugged into the 81 harness.