Hello. New to mustangs but got nice deal on mine. 2000 3.8 had bad transmission. Swapped out motor and transmission from what was told a 2000. Motor I pulled had temp sensor in intake manifold but new (used) motor was plugged off and has sensor in back of drivers side head. I installed with wiring harness from new motor. Car ran and drove great but temp gauge and a/c does not work. Any ideas ??? Any help would be greatly appreciated !!!