95 neon help please

[winddancer]

i have a 95 neon with 160,000 miles the head gasget was done at 50,000 now after i start the car it runs good but then after 1/2 hr it starts ideling hi and fludders i have changed the map, idel air and cleaned the egr allso i have changed spark plugs,wires,coil pack,and timing belt i tested the thermasat it opened at 212 f so i proped it open but it still dosent help i have run out of options can anyone help thank you
sometime it codes out but this last time it didnt code

[ChevyGal]

Does it do anything when you drive it? If so, describe that if you can.

I didn't see listed there in the areas checked, but look at the fuel injectors. Could have one bad or going bad. But first I need more info.

[winddancer]

no i havent drove it it bogges out if i give it gas after the 1/2 hr

[winddancer]

i ran it for 30 min and it started acting up then i shut it down and un hooked the bat for 5 min and restarted it it ran fin i drove it and got it up to 90 miles/hr but after 20 min it bogged out and died once it sounded like a vw bug all the way home i think it is the computer but not sure

[ChevyGal]

Weird. I was going to say upstream O2 or injector, but it's not showing symtoms I am thinking would go with that stuff.

[winddancer]

i have unhooked the o2 sensor with no change i have bought a cpu on e-bay for 20.00 i will try that

[rebuilder]

sounds like fuel pump

[winddancer]

whould a fuel pump do that after 30 min becuse before that i can drive it at anyspeed i had it upto 90 the other day

[rebuilder]

The fuel pump will do that,especially if it takes 1/2 hour to do it. You
should have a fuel pump gauge installed and drive for the half hour and
see if fuel pressure drops,......good luck

[winddancer]

ok will try that