Actually what you said makes perfect sense to me (I think). But just to make sure I get it exactly, I want to go through an example using the fuel table. Let's just use:
ynorm_fuel_base_table
1.9999695 7.000
0.8500061 7.000
0.1499939 0.000
0.0000000 0.000
0.0000000 0.000
0.0000000 0.000
and xnorm_fuel_16
16383.750 9.000
7500.000 9.000
6500.000 8.000
4000.000 3.000
1000.000 0.000
0.000 0.000
If I understand correctly, if my car is at a load of .8500061 and an RPM of 6500, the AFR value should be whatever is in row 7 column 8 of the base_fuel_table. What I don't understand is which normalizer table is used and when. What I'm talking about are xnorm_fuel_16, xnorm_fuel 18, ynorm_fuel_15, and ynorm_fuel_base_table. The info in Advantage doesnt really tell me why there are all of these different tables instead of just one ynorm and one xnorm.
I still can't figure out why my car occasionally stumbles (sudden power drop spike) during acceleration under partial throttle. I doubt it's because of the vacuum leak because it seems to happen right at the same RPMs every time (right around 2300 RPMs and again around 2800 RPMs. I don't think it could be a misfire either for the same reason, although it does feel like a misfire. What do you suggest I start playing with on my PRP to try to cure this?
As for the IMRC, I gutted it all out of the LIM, and turned it off in the PRP software, so there's no more tables for controlling anything having to do with IMRC. I did add fuel and spark advance below 3000 RPM (~12-14* more advance added than above 3000 RPM) in the base knock table (and maxed out the maximum allowed spark table so I don't have to keep changing it also) and I still feel a jump in power right at 3000 RPM. I'm guessing there's something else I need to change that I've overlooked, but I haven't been able to find it yet. BTW, if it makes any difference, the car does run a lot smoother, albeit less powerful, when the A/C is on. Even the idle is almost always smooth and right where it should be when the A/C is on.
I also tried to raise my rev limiter to 7500, but that didn't work either. I raised several different values having to do with the rev limiter but it still gets stopped at 6750 RPMs
The only other problem I'm having is the car is occasionally "jerky" when coasting down with my foot off the gas.
