I have a 1993 S10 blazer, it has a 4.3, with a W vin code, I got it from my brother inlaw, he got rid of it because they had the same problem and his mechanic had changed the computer, distributor, spider fuel rail, map sensor, knock sensor. The S10 when you first start it idles fine, but the check engine light comes on, indicating electronic spark control failer. After a couple of minutes you can clear the light. But when you drive it on the road it starts to loose power and wont pull itself. You give it more throttle and it will do a small backfire through the intake, and surgeand shake. Then you can turn ignition off, start it back up and it will run for a minute. Then it does it all over again.
Any help would be greatly apreciated. Thanks for your help.
have the same problem?
Tuesday, August 21st, 2007 AT 6:00 PM