[C3H8]

Olympiadis, great post!

I had never realized the resistor on the coolant temp sensor could make that much of an impact, but I had always suspected something else was going on besides making the computer go into closed loop quicker. It just seemed to me that I was getting too good of a fuel economy number from going into closed loop alone. and now I know why!

I had never thought of things like acceleration enrichment being even richer when the engine is cold vs fully warmed up. I do know all too well what AE is, It's fuel injection's version of an accelerator pump. i have 6 red LED's on my dash that are hooked up to each of my 6 gas injectors. when the engine is cold and I touch the throttle, I can SEE acceleration enrichment via all 6 injector LED's lighting up at the exact same time, for I'm guessing 1/4 of a second. I guess this is how fuel injection simulates an accelerator pump valve.