Also adjusted the timing as a factor of load and that seems to be working out well. I rescaled my MAF transfer function from -4 to about -20% at max voltage, so not exactly a linear scaling but very smooth. I used obdII datalogging to see the fuel trims and they ranged from -4 at idle to -24% at cruise. I have wideband capability but have not hooked it up yet, waiting for the weekend. ![]() I've kept the boost around 4.4psi for now so that I don't hurt anything while I tune this. I haven't adjusted any TPS values since that part was fine before I downloaded the tune. I have tried scaling it from the 1.99 value and from 1.60 load value down to. I've deliberated on how to scale the load values on the axes because of the higher than 100% load it can achieve. Right now if I am cruising and turn on the ac it won't come on, nor at idle, but if I accelerate once or twice at full throttle then when I come back to a stop at idle it will come on. I'm not worried about that as I think it will work itself out when I fix the ac or I'll get it in the fine tuning. I've also experienced a stall every now and then when hot. I think it is a load issue but I'm not sure. I've begun to tune my car and the AC system does not want to turn on right away when I flip the switch (car mods posted below). ![]() Despite this I've come quite a ways in just a few days. First, I'm new to the forum and a recent ProRacer package tuner.
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