Bad idle (jumps around)

[chonmoreno]

I have a 1990 SOHC all stock and automatic, the problem is that when im driving and come to a stop my idle just jumps around from 200rpm to 600 back and forth and feels like it's going to stall. Once i put it on Neutral, it jumps up to 800ish but then it would drop again and jump around once again....Also, while driving the car feels weak when i hit the 3000 rpm range and when i turn off the engine it smells weird like i don't know gas with something else...There is no smoke or anything like that. Could this be my fuel pump going bad? any other ideas? thank you all.

[WWJD]

I had the same isse on my 90' 5 speed. what I did to fix this was - I took off the I.A.A. unit (it's on the back of your intake man.) - took it apart and cleaned it with parts cleaner, I used brake cleaner - put it back together. - start the car and let it get to runnen' temp. - disconect the T.P.S. conector. - with the car on I moved the TPS back and forth and adjusted the idle screw on the I.A.A. - when it got smooth I hook everythang back up and it's been good ever sense.It helps if you look for vac. leaksand clean out your A.V.I.I used sea foam as well. my cars smooth now