Thats what I was thinking too. Unfortunately the print out Ford gave me does not show power or ground, just the 2 wires that go to ecu. I know which is power from checking it with a test light, but is the 4th wire ground or does it ground itself on the exhaust?
04 ZX3 Mostly Stock ["Best Non-SVT" FITF '12][3/13 ROTM][7/14 ROTM][2014 ROTY]
12 SE Hatch Sport & Winter Package, ST Front End
94 F150 XLT 5.0 HO, OBDII Swap
89 Bronco II XLT Crawler
Last edited by disciplerocks; 10-22-2009 at 09:00 PM.
Reason: i can't spell