Guypie Posted February 11, 2016 Share Posted February 11, 2016 What precautions should I take when welding on a car with EFI? I have heard that removing the earth lead on the battery is sufficient but wanted to confirm. Quote Link to comment Share on other sites More sharing options...
beachlander Posted February 11, 2016 Share Posted February 11, 2016 Disconnect the battery is all you need to so 1 Quote Link to comment Share on other sites More sharing options...
Yowzer Posted February 11, 2016 Share Posted February 11, 2016 Unplug the oxy sensor(s) if it has them Quote Link to comment Share on other sites More sharing options...
flyingbrick Posted February 11, 2016 Share Posted February 11, 2016 Also connect ya earth to the same area that you are welding. Eg, not the diff if you are blazing up the firewall 1 Quote Link to comment Share on other sites More sharing options...
JoKer Posted February 11, 2016 Share Posted February 11, 2016 mate reckoned / uses one of them battery saver / devices, plugs onto the Batt like a jump pack, never really asked / seen what brand tho / ling Quote Link to comment Share on other sites More sharing options...
Ned Posted February 12, 2016 Share Posted February 12, 2016 Icon 1 Quote Link to comment Share on other sites More sharing options...
Guypie Posted February 12, 2016 Author Share Posted February 12, 2016 Cool, welding done hopefully no problems. Funny thing is that before welding I had an auto electrician looking at it because its not giving consistant spark, and he suspects the ECU. so its probably stuffed anyways hahaha. Its going to look a bit dodge though when I post up a "WTB ecu" thread directly after the "how to not blow up ECU when welding?" thread. 3 Quote Link to comment Share on other sites More sharing options...
Bling Posted February 14, 2016 Share Posted February 14, 2016 I'm guessing he has inspected the ECU for blown caps / whatever else commonly goes wrong with the boards? /you fried it puhuhu Quote Link to comment Share on other sites More sharing options...
Guypie Posted February 14, 2016 Author Share Posted February 14, 2016 Nah he just took the ignitors I had away for testing. I have pulled the ECU now to look for a second hand one, wouldn't surprise me if its gone screwy, the one in my ae101 has had to be replaced and has since generated another error code on in but still works ok so no biggie. Really want to get this thing on the road for nats trackday. Quote Link to comment Share on other sites More sharing options...
Bling Posted February 14, 2016 Share Posted February 14, 2016 What is the car? Could be worth speaking to these guys: https://www.facebook.com/totalautomotivetimaru/ Matt Dunn there knows his way around the ECU's from memory. Toyota ones at least (from previous threads on another forum). Quote Link to comment Share on other sites More sharing options...
Guypie Posted February 14, 2016 Author Share Posted February 14, 2016 Its an AE82 corolla GT. I might call them and see what they can do Quote Link to comment Share on other sites More sharing options...
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