runaway idle

[dap08]

95 intermittent idle problem ...gradually gets higher on highway up to 2500 rpm....braking becomes impossible. put in neutral..rpms go nuts..up to red line shut off...restart rpms up to 2500,,,revving to redline & 2500...cat conv red hot...smoking.

let cool down for 1/2 hr restarts ok...sometimes.

have replaced fpr,plugs,wires,egr valve,pcv valve, fuel pressure sensor.

any ideas? hard to restart sometimes..long cranking.

[RoraStar96]

Hard starts = Fuel Pressure Regulator (common problem)

Also your cat is clogged, get it replaced. High flow is nice, probably cheaper then the OEM replacement. And you will get more exhaust kick

I would also get your Idle postitioning sensors and TPS checked out.

Braking becomes impossible? how?

Sounds like your car needs a bit of TLC right now