Here is what I've did with "Crappy" today:
- Tested WOT switch (Ohms + click): checked good.
- Adjusted WOT so it clicks as early as possible (any problem with this?). It was the opposite; full counter-clockwise and not clicking.
-Installed Innovative LC-2 AFR Gauge (see picture). At idle and cruising around at 3,000 RPMs, AFR was around 14.5 +/-.5 (bounced around a lot, so hard to say exact reading). Under WOT:
2,000 RPM = 10.4
3,000 RPM = 11.5
4,000 RPM = 12.6
5,000 RPM = 13.6
I got these measurements from my Poor-Man-Porsche data acquisition system. I taped my GTech above my AFR gauge. Then my wife came along for a ride and videoed the GTech (for RPMs) and my AFR gauge. I did 5 runs and took the average. Data was very repeatable. I did not take it above 5,000 RPMs because still breaking in engine.
Builder said he turned up the fuel pressure a little and could dial it back, so I'm not too surprised that now I am running rich. My butt dyno confirms the very rich condition at 2,000 RPMs (I feel no power/torque). However, I thought the AFR would be invariant with RPMs.
Tomorrow I'll continue to check the rest of the Motronic. Oh, and don't worry the cardboard in picture will be replaced with wood covered in black vinyl.
Oh and my the way... my wife says to all the other wives, "Let your man buy the more expensive wideband O2 sensor with RPM data logging."
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