elishallen Posted April 16, 2015 Share Posted April 16, 2015 Back Story: Car randomly started to lean out 16-20 Afr under (attempted) acceleration. 76 body w/ Stock 81 L28ET This morning I picked up some QD Electric Cleaner and sprayed all the connectors on the ecu harness. The results were instant and incredible. I drove the car around the neighbor hood and to get gas. Now pay attention to this next part: I turn off the car to fill my tank, and turn the car back on and go directly home. A storm then passed over and afterwards the car started to lean out the exact same way as before. I thought the ECU got some water in it so I took it out, opened it up, and let it sit inside for about an hour and a half to dry. The ECU the goes back in the car but nothing different happens. I then use the QD again and it runs just fine. I turn it off and let it sit for about ten minutes then get back in and its leaning out again. More contact cleaner goes on and it works. So now I can only get it to work by spraying the connection. In Summary: car ran great and was able to turn off and back on once while keeping performance. The rest of the time the ECU connectors must be cleaned if I want to go anywhere. Anyone have any ideas as to why this is making the car run but only for one time? Quote Link to comment Share on other sites More sharing options...
Miles Posted April 17, 2015 Share Posted April 17, 2015 Check the mechanical condition of the connectors. Are they tight and making contact? Quote Link to comment Share on other sites More sharing options...
elishallen Posted April 17, 2015 Author Share Posted April 17, 2015 I can not tell if the pins are but I tightened up the female ends of the blade connectors. Quote Link to comment Share on other sites More sharing options...
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