My 86gt is having problems idling. a couple weeks ago i drove the car around town, it was fine then started the buck and miss, now the car wont even idle. My fuel pressure is at 40psi. i changed the wires, plugs and bought a distributor with new tfi also new cap and rotor, new tps sensor. I got spark and fuel i have to let the car crank longer in order to start while im advancing the dist and hold the throttle open, then the car dies immediatly like after 10 seconds. Does anyone have any ideas?