My guess would be you have a faulty OP sending unit,purdy common on GM!! There are actually 2 sending units,1 controls the gauge and the other go's through the ECM and will shut down the fuel pump if there isn't enough oil pressure! You can or have a mechanic put a manual gauge on it and see what the OP really is running, If it has good OP then,install a new sending unit and Ride that Ride with a Smile!
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My guess would be you have a faulty OP sending unit,purdy common on GM!! There are actually 2 sending units,1 controls the gauge and the other go's through the ECM and will shut down the fuel pump if there isn't enough oil pressure! You can or have a mechanic put a manual gauge on it and see what the OP really is running, If it has good OP then,install a new sending unit and Ride that Ride with a Smile!
Have a Great Day!! GMJ