09-06-2010, 05:22 pm
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 Join Date: Nov 2006 Location: Ann Arbor, MI Posts: 640
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|  Ground for ECM?
Paul determined my CalPack wasn't seated correctly and my ECM had a ground issue when we were at Cruisefest in June. I finally tore into it and reseated the CalPack and chip,(they seemed fine, so my next guess is the Hypertech chip is confusing the OBD I) but didn't see anything I could easily identify as a ground. Lots of harnesses, but no ground strap. Anyone know where it is? Couldn't find it in the shop manual. Is it a common strap for the whole car? I imagine after 26 years, it needs cleaned and checked anyway. | ||||||||||||||||||||
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1985 Z51 4+3 trans rebuilt 5.7 TPI,(.10 over) w/ CompCams 12-262-4, 52MM Throttlebody, underdrive pulleys, reworked heads, Hypertech Thermomaster chip, & cat back exhaust
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09-07-2010, 04:17 am
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| GM World Class Certified Technician  Join Date: Nov 2006 Location: New Haven Ct Posts: 5,141
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HI there, Drivers side of the block, near the oil filter and they are attached to the bellhousing bolts. Allthebest, c4c5 | ||||||||||||||||||||
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