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I have been watching my AFR since I recieve my serial cable TAQuickness and noticed that when cruising at 70mph in OD my afr is ~13.8-14.3. That seems to be a little rich and curious what I need to do to lean it out. New to tuning and just finished my first AutoVE of the truck. Truck is a 97 2dr yukon with a 383, marine intake, mild cam and 0411.
Wes
first of all, you need to log the following:
AFR vs RPM vs Map
Timing
ECT
IAT
Trims if you still use them
How do you log afr vs rpm vs map? Thanks
Can you connect the WB to efilive?
yes
Before I ever touched fuel I went through the ignition map and cleaned it up. Then I finally got off my ass and got autoVE working with a TAQuickness cable which was awesome. To date I've only done my original 2 rounds of autoVE but they each had a good 30 minutes of data and I hit every cell I wanted to enough times. Honestly, the second round did almost nothing, the first round pretty much got it right on 14.7:1 at that particular IAT. Now that it's cold, the truck hangs more around 14.0-14.2 at cruise which is still leaner than it was stock. Putsing around town in the summer time gets me 16.XX:1 AFR's which totally kills the performance, that's why I bought a 411 but I've been too busy with my other 2 projects to get on this one. Since you've got the 411, once you get the autoVE right just remember the IAT it was right at because you might have to screw with IAT correction factors or that dreaded IAT/ECT blend table.