My 89 blazer with 5.7L was running at idle for a couple of minutes and then died. I checked and i have no spark. I replaced every thing from distributor to the plugs. Someone mentioned the ecm. Any ideas out there to help me.

 

Start with the simple stuff: Check the fuse for the ECM (I'm assuming it has one, some full size guys can chime in if not), check to see that you're getting power to the ECM.

 

The blazer is at my buddies house. but i did check the fuses and the were good. but how would i test to see if the ecm is getting power. and were can i find the ecm? I know a little mechanic stuff but not much
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