Installed 4L80E feels like no 1st or 2nd, HELP!!
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Installed 4L80E feels like no 1st or 2nd, HELP!!
I installed the 4L80E using the stock 4L60E plug, did the wiring mod at the pcm installing a relay. Deleted codes P0875 & P1860. car feels like it starts in 3rd and shifts to 4th, no codes.
Did I screw up somewhere?
Did I screw up somewhere?