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Old 07-28-2011, 12:31 PM   #1 (permalink)
Polymorphic Modder
 
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ScanGauge II issue at full throttle

I installed a ScanGuage a while back. Works great so far but I just noticed an issue at full throttle.

I know we should never use Full throttle (only drink it from a can). The problem is that at full throttle the GPH goes to 0. Seems this issue starts at about 3/4 throttle.

Has anyone else seen this issue? Have I found the holy grail of fuel economy here, by just pushing accelerator to the floor?

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Old 07-28-2011, 12:50 PM   #2 (permalink)
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You may have found a SG programming error, but I'm pretty sure it's not the holy grail . I've never tried WOT with SG displaying GPH. I'll try it today to confirm/refute your observation.
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Old 07-29-2011, 04:30 AM   #3 (permalink)
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I tested your observation with my SG in my wife's '06 Elantra, both going downhill and uphill. GPH climbed steadily to the 10 and 11 GPH range with wide open throttle. I never saw 0 GPH.

Interestingly, my average fuel economy for my driving today was just about average. Despite the WOT, I was still at 25 mpg midway to my destination, and 32 mpg at my destination - the same FE as I normally achieve on that drive.

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Darrell

Boycotting Exxon since 1989, BP since 2010
Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? George Carlin
Mean Green Toaster Machine
49.5 mpg avg over 53,000 miles. 176% of '08 EPA
Best flat drive 94.5 mpg for 10.1 mi
Longest tank 1033 km (642 mi) on 10.56 gal = 60.8 mpg
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