Weird probs with Firebird

[AbsurdParadox]

Ever since I got my 89 Firebird about a year ago, it will just ... die... now and then, and I have no clue why. I've replaced the fuel filter, air filter, O2 sensor, cap/rotor/plugs, ran all kinds of different injector cleaner in it, checked computer codes (gives an "everythings okay" reading), uh... what else... heh, I've done quite a bit to it short of taking it in and having the actual injectors looked at. Also, if its sittin in park or neutral (yep, automatic, with the weak 2.8l 6 cyl) and I tap the gas, to get it revvin' at about 2500 rpm or so, and let off the gas, it will climb back down VERY slowly, barely moving/slowing down, until I hit the brake, and this is in park! Some sort of vaccuum leak or something, I dunno, you guys have ANY ideas?

[o0omystiko0o]

Mass air flow unit maybe....same thing happened in my 88 camaro

[Blackbird01]

Try disconnecting the MAF and running in Speed Density mode.
If it goes away, then you know it's the MAF Sensor.
One of the lil wires could have been damaged.

[AnotherBreedRacing]

yes it could be your maf but it should throw a code if not there has to be something else wrong i would have the comp ship looked at regulating the aif to fuel mixture but u could just have some water in the tank to