Drove it all day Friday (poorly running, but running -- only made the mistake of shutting it off once, barely got it re-started). Changed oil & TPS yesterday. Started it, it ran, still 3-up-1-dn idling, shut it off (total run time maybe 15 minutes). This morning wouldn't start at all. Put old TPS back in for kicks, no improvement.
Roughly 3/4 tank; full before I drove it around but gas mileage has plumetted last week or so.
Have only let it get very low 2-3x (in 3-1/2 years), not at all since I changed the fuel filter, and added fuel injector/carb cleaner (Slick 50) at the same time I changed the oil.
I'll ask my mech. to check the screen prior to replacing pump *sigh* I'm not set up to drain gas before removing tank to get to the pump, nor have enough daylight time, nor time to be without my only vehicle.
Thank you all for your help -- I'll post back what it is that's wrong once I get it back (assuming anyone can ever figure it out). Happy Easter, y'all!
OH... thank you, orbste, for the diagram -- and for the pointing to something else we can check (I'm about out of ideas, now). I still don't know what
an IAC is
, but I'm guessing Air Idle Control, maybe?