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Author Topic: engine ground upgrade diablounicorn ¯ Member # 13033 posted                              sup guys, I'm about to upgrade my ground wires and trying to figure out which to change and confused where to put them, like the battery ground that had the ecu pig tail does that need upgrade? if so how? and the one that goes from the head to firewall where can I put that? you guys have pics for fox mustang and also leaving the battery in stock location. Posts: 346 | From: San Diego | Registered: Jun 2013  |  : Blind 2.3L CAFords OG Member # 3052 posted                              battery negative to front sway bar mount frame bolt front swaybar mount frame bolt to drivers side head, easier without A/C but can also just go to a/c bracket bolt as well engine injector/sensor harness orange wire can then ground to the firewall still, or I usually just move it to one of the throttle body or lower intake bolts. -------------------- 89 LX Notchback ex 4cyl, 14psi 02 Harley F150, 15psi Posts: 8521 | From: Fairfield | Registered: Jul 2003  |  : diablounicorn ¯ Member # 13033 posted                              so i dont need to touch the one that has the computer ground plug? Posts: 346 | From: San Diego | Registered: Jun 2013  |  :

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