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Re: Swapping an LS into a 50 GMC fuel questions
Ok just for reference the problem was the TAC module and ECM wee not wired to KEY ON. The TAC was wired to BAT. Apparenty they both have to power up together. And when I shut it off the ECM turned off but the TAC remained powered up. That's why I heard a click 5 seconds or so after turning it off. All good now.
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1962 C10 Longbox LS 5.3 4L60E----Sold$$
2014 Ram 4x4 3500 Laramie Diesel..Momma's truck
2015 Ram 4x4 1500
1997 Boxster.
1972 K10 Custom Deluxe LS 6.0
1950 GMC 3100 S10 & LS swapped
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