So I just took my 1989 Trans am to get new tire when I picked it up it would start just fine but would not go to idle and would just die. So I drove it around the corner to a friend's and he helped me. Essentially I think the problem was a leak on the passenger side crank case pressure tube so I replaced that. During fixing he touched the tps sensor and the idle was really low.. so I went in and set that back to .54 But now my idle is still really low and the car feels bogged down when driving. Just replaced fuel filter, air filter, didtrubutor cap and rotor, and put sea foam in gas tank. What could the issue be, could it be a bad fuel pump?