ok heres the deal, i bought an 03 silverado duramax that was wrecked and not running, got it tore apart and the trans computer was gone and some of the wires on the clear clip (c2) were pulled out, well after buying both computers and repairing the wires with a bunch of papers i started it up after getting the security mode off and only had a couple minor codes but the oil pressure hand doesnt move but very a little and only when i rev the engine but the motor runs super smooth and no noises and also the low oil pressure light or ding just isnt there im thinkin the sensor is messed up but im open to suggestions please help