I have a 1991 Camaro V6 3.1 MFI. It will cut out when ideling if ran long enough or if you rev it, it will cut out. I have replace the spark plugs and wires, cap and rotor. also fuel filter and the fuel pump. and nothing seems to be helping. I am starting to lean towards a sensor now. But I am not sure which, or if there is anything else it could be. Does anyone have any ideas?