VinhZXT Posted February 27, 2007 Share Posted February 27, 2007 This is a 79 280ZX. Can the ECU be fried if I do some welding and left the battery hooked up? I just want to throw this question here to see this happened to anyone before. I did some welding on my ZX last night without unhook the battery. Tonight I tried to start it up and it wouldn't start. It has sparks and the fuel pump turns on when I crank. So the only thing left is the ECU not sending signal to fire the injectors. I have another ECU that I will try tomorrow night. The car was running fine the night before BTW. Quote Link to comment Share on other sites More sharing options...
rdsk8ter Posted February 27, 2007 Share Posted February 27, 2007 sent you pm yes it can toast the ecu Quote Link to comment Share on other sites More sharing options...
VinhZXT Posted February 27, 2007 Author Share Posted February 27, 2007 I got it running. NO I didn't fried the ECU when I was doing some welding on the car. It was the spark plugs fouling out. After a good clean job it fired up. Quote Link to comment Share on other sites More sharing options...
Guest TeamNissan Posted February 27, 2007 Share Posted February 27, 2007 For future reference I would def disconect the bat. I've actualy heard of people doing some serious and trouble some damage by not. Quote Link to comment Share on other sites More sharing options...
naviathan Posted February 27, 2007 Share Posted February 27, 2007 Yeah welding with the battery connected it bad juju. You can destroy your battery, ECU and anything really that's sensitive electronics. Quote Link to comment Share on other sites More sharing options...
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