[M_a_t_t]

I think I got lean burn figured out. I just adjusted it until it stayed between 16.5 and 17:1 (the suggested afr values) while cruising. I am having an issue, and I haven't driven enough to find the cause, where after awhile the car just basically quits trying. It doesn't die, but it loses all power and goes lean past 19:1 (gauge limit). Whats interesting though is if I flip the switch back and go into dfco then give it some gas, like to get back up to speed or even just a little, I can flip it back to lean and it repeats from there. It did increase my instant mileage by about 5 mpg (up to 45) at 55-60. MPGuino isn't calibrated yet though so hopefully that number goes up as I finish calibration. I know the best the MPGuino has shown on my trip to work was just a hair past 36, so hopefully tomorrow I will know if/how much lean burn has helped.

I also had my first problem with the alternator delete. I did a lot (~50 miles) of testing with the lean burn going back and forth down a low traffic road with a high enough speed limit and completely spaced how much range I had. I'm not sure I even had a full charge when I left this morning. Well I pulled over and turned the car off to reset the mpguino and I was going to do a non lean burn and a lean burn run to make sure I was getting useable fuel economy and I went to restart the car and nothing..... Got out and checked and it was at 11v I had to get a jump start and then drove the car home a few miles and plugged it in.