Quote:
Originally Posted by justjohn
Bruce, do you have the speed nailed down that you loose lean burn at? For my 96 HX it's about 54MPH on the speedometer. If you hover just above that point and keep it in lean burn you should see good numbers....
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I wish my HX would run lean burn (LB) down to 54 MPH. It will do that briefly after first permitting LB but after a few miles the minimum is 61.x these days for me (in 5th). Oddly, I've had times when it just went on and on in low speed LB, 10-15 miles and maybe more, but I never could identify what permitted it.
This car has a history of oil burning so the exhaust is all carboned up, and possibly there are issues with the cat and/or oxy sensor for the same reason. I've heard of HX and also Insights doing lean burn at much lower speeds. To keep LB I'm limited to about 1/3 throttle, and minimum speed as noted.
I use an MPGuino for mpg. I have a ScanGauge that I've programmed to show LB. I also use it for Throttle Position (very helpful in getting and staying in LB), and engine temp and system voltage.
If you need the ScanGauge procedure for the LeanBurn X-gauge setup, just send me a pm.