well my car starts now, still has the weird idle problem. occasionally the rpms jump to around 1500 the SES light comes on and it runs "fine". soon after it slows down to about 1000rpm. touching the throttle kills it and eventually it drops back into the terrible idle then stalls. any ideas?

 

Try checking the fuel pump I have a 89 Iroc conv. 305 tpi that is doing same thing I checked the fuel pressure and it was only 10psi at idle and it should be anywhere from 35-40 lbs

 

and try checking the fuel pressure regulator. diaphram might have busted

 

Mine did the same, replace both MAF sensors

 

i will check the fuel pressure this week when i have a moment. that seems like the probable cause? i also may have bad gas... that is my next move to drain the tank and get some fresh fuel. Blue- did you mean the sensors or the relays in the pic?