My 96 Chevy tahoe stalls when I start it unless I turn the key and let the beeping stops and then crank it, it starts right up. Sometimes when I'm at a light the rpms go up and down and wants to stall
Replace the fuel pump and spider had it scanned and mass flow
sensor came up. Replaced it, scanned it again and still comes up
and I think it's not workin. So my question is what should I do next
and can this be causing me problems?