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Car ran fine before spinning bearings on rods. Removed engine and Trans. Rebuilt engine with JE forged pistons and IE Rods With King Race bearings And ARP main and head bolts. Big turbo ysdayadayada. Everything is installed now. I can’t get shifter out of Park engine fires up but can’t change gears. CEL U0103. Is it possible a ground is to blame????? Or is it the shifter in the car ?????
