Pucci...Got a throttle body assembly and TPS on its way. But I think I may ohm out my switch today just for the fun of it.

I checked the cap, changed the rotor, and wires. Did notice last week that I was getting arc at the number four plug and discovered that in my haste of reassemble after the valve adjustment I had forgotten to put the wires in their little clippy things. The wire had been resting against the engine and got too hot. I ohmed out the old one, put it back on, and no more arc. Haven't thought about the coil too much cuz it doesn't make sense that it would be almost fine on cold start and then go extremely funky once warm. It had been suggested to me though.

The MAF sensor...Yeah, gonna check that out today. I'm guessing maybe I can ohm it out, or at least check contacts? I may even price one out just to see. It's easy enough to change right?

Changed the battery a couple of months ago when the alternator went. Changed the alternator too (duh right?)

Yep, you're right about the fuel system. I had put it off initially cuz I thought I needed to buy a new assembly and had considered a new tank as well. Have had to repair the tank for pinhole leaks in one little cluster just above the seem. But I did drop the tank last week and the feed line is good, the return line seemed o.k.....hoses, and metal line (what's left of it) but the top of the tank seemed saturated. The cap is looking worn and the gasket is not happy at all. But when I pressure test, I am getting higher than specs, not lower. Exhaust Gas Analyser shows I am too rich, not lean. It's as if once the engine is warm, the air/fuel mix is not adjusted and the engine is drowning, not starving. There is no backfire, maybe just a little "pfftt" out the exhaust once in a while. Though it stumbles, and sputters, there are no other signs of engine failure or something really bad happening like black smoke, or head gasket issues. I'm not even getting the "Check Engine" light anymore so FRED isn't even aware that soemthing is messed up. But hey, "Garbage in-garbage out" right. FRED can only use the information he receives and what he's beging fed is not supposed to be on the menu.

I did do a "google" search for salvage yards and Isuzu salvage last night. I made some inquiries and got some good deals sent my way but none as good as the one you got. I'm gonna have to go check that out. The only salvage yard in town (within a 150 mile radious)didn't believe I knew what I wanted yesterday. The guy kept saying "So you need the sending unit" and "o.k., you need the pump". And I kept saying "No, I need the fuel pump assembly" and then I had to describe the darn thing to him. I think sometimes they just don't want to believe that a girl just might really know what she's talking about. It's all good though. I don't deal with them very often and I get lots of respect from Sanels, Napa, and just about everyone else I do deal with.