Glad to hear that things are starting to jive with the old lean burn box :-)
Just takes some time to get used to driving with it and learning it's quirks.
It sounds like it's performing exactly like it did on my car. I'm sure you will be able to squeeze a 60mpg tank out of it in ideal conditions...however winter is hard on lean burn, or at least it was for me. You can see the large differences in the summer mpgs and winter mpgs in my fuel log. Lean likes hot weather. If you haven't already, it's time to get a trans pan, oil pan, block and radiator heater hooked up! I had about 1400watts of heating power and came out to a 100-120 degree engine in the dead of winter. This would allow me to go lean less than a mile from my house.
Also wondering why you went with a 99% grill block? I found that a full grill block was costing me mpg's over having a half license plate sized hole (I also had it ducted to help keep the air flowing past the radiator and trans cooler. The radiator fan cycling is what cost me mpg's. It would come on every couple miles and foul my lean burn burn by loading the engine more than what I could maintain a nice 16.5:1 AFR.
Quote:
Originally Posted by BabyDiesel
Oh! If I had not made it obviously to the viewing public, then yes, lean burn is working and working very well 
I'm beginning to get the checkpoints down where my computer figures out my deceit and goes open loop crazy. It seems to be 4-6 mile intervals, so I am EonC neutral coasting when these points come up so I can go from 65 mpg to 250 mpg and back to 65 mpg, instead of cruising 65 mpg, car sputtering and shaking as it goes in open loop, LB off, 30 mpg for 15 seconds till it goes back into closed loop, then back to LB and 65 mpg. I look at this as automatic Nox purge cycles 
I'm hoping to get the wideband installed this weekend. I usually work 7:30 am to 7 pm, so it is hard to get there during the week. |