no start after replacing battery terminal connectors on 2000 Oldsmobile Bravada

vehicle was taken to advance for battery terminal con nectors replacement & now will not start turns over fine battery new fuel pump cutting on no spark at plugs rotor button ok ignition coil replaced module taken off & checked out ok

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do you have any alarm systems that may need to be re set??

Roy
got it today the crankshaft position sensor was unplugged