Rpm drop

[Tyrret]

Rpms drop down to 300-400 and sometimes stalls completely when giving gas from idle. Idle rpm is about 800

 

[Rhett]

That could be any number of problems -- but I would start by testing the fuel pressure, using a gauge. Many auto parts stores can do that for you. Or you can buy one for about $30, tape it to your windshield as you crank the car and idle / drive it. Should be about 30-35 psi at idle. Less than 25 psi will mean stalling. Lots of posts with this problem lately it seems like...

 

[Roadrunner777]

I've seen the MAF do this. If you have a check engine light on, that's worth looking into. A lot of parts stores will read your codes if they have the old-style reader.

 

[Jason94sport]

Bad IAC, TPS, MAS...all can cause it. I'd take the IAC & TB off & clean them real good with carb cleaner 1st. Then clean the MAS with a safe cleaner & let it dry. You can measure the voltage of the TPS. Should be .95-.97 volts.