stalling at stops loud

we are having trouble whith stalling in idle. and at red lights. lately in the middel of driving, replaced stuff it will be ok for a week, and go right back to the same thing its loud. ilding is off.and stalling. the week after replacing stuff, you couldnt even hear the car running, now it bad again.:banghead:

Welcome Aboard!

Stalling and poor idle can be from incorrect fuel mixture, vacuum leaks, or load.

What year? What engine? What transmission?

should i use reg. gas in my car:banghead:

1992 3.1 engine lumina been putting 89 intead of 86 replaced temp switchandsenser egr valve map sensor each time i replace things the car is fine then it go rigt back to stalling and loud

What codes has it thrown? This sounds like fuel pressure (from plugged filter, worn pump, kinked line, pres. reg. valve etc.) problem. Also check O2 sensor & puter itself.