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Old 09-15-2015, 10:23 PM   #265 (permalink)
pgfpro
In Lean Burn Mode
 
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That is what I thought. Although the time varies from 1 minute to 10 minutes. It seems that if I put too much load (above 63%) on the car for any reason in LB, it will go into OL a lot sooner. Tygen1 said that this is just a quirk to our setup, and is normal.

I filled up last night... And really wish i didn't. I got 47.5 mpg this time around, which is exceptionally good for the ZX2, but my worst fill in over a month! My ScanGauge reported 56.6 mpg and needing 5.9 gallons. It took 7.2 gallons

I'm at a total loss as to how it could happen. Is lean burn not workingand could it be tricking my ScanGauge? I feel the power loss when I flip my switch, so I know something is happening... I really need to get a wideband O2 so I can see what AFRs I am running.

Help!
I would run another tank before getting to concern.
The other thing that could be happening is some parts of load while in lean burn will have poor BSFC numbers and the engine becomes less efficient then if it was at stioch. In a N/A engine the window for great lean burn BSFC is a lot smaller then when running a boost engine. On my Insight I have noticed this verses my Talon. The Talon has a much bigger window and is a lot easier to keep in efficient lean burn. So this still could become a driving learning curve more then anything. To really know whats going on you will need a way to read A/F and injector pulse width or a MpGuino.
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