ScanGauge shuts off during P&G

BCcanuck · #1 05-24-2009, 05:17 AM

When I do a P&G with NICE-Off coasting, Scangauge shuts off every time I cut the engine to glide. I know that this happens because turning to key off resets the ECU computer, which takes several seconds before it reboots and starts sending data again (as a result the ScanGauge goes into sleep mode). When I shut off the engine at the start of a glide, I usually flip the key to ACC for about a second to kill the engine, then put it back to ON so that my odometer and speedometer still work. I have noticed that even after the ECU has rebooted, the distance counter in ScanGauge will not register any distance travelled until I restart the engine (however my regular digital odometer is still advancing while the engine is off)

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As a result I've found that if I try to do any engine-off coasting, it messes up my trip data on the Scangauge because it ends up registering less distance than I actually travel. Does anyone have any tips how to avoid this problem? Or is it specific to my vehicle? (1999 Toyota Corolla manual trans.)

Thanks

abcdpeterson · #2 05-24-2009, 05:43 AM

there is a setting for Hybrid. If you set scangauge to Hybrid it will work.
with that setting scangauge will stay on if ICE is off but the ignition is on.
Kill the ICE turn the Key back to ON, Scangauge will see the ignition back on and it will stay on.

BCcanuck · #3 05-25-2009, 02:40 AM

Thanks for the tip! This solves the problem. I still think it fails to record distance traveled for a second or two while the ECU reboots, which if I am doing FAS frequently will add up to a couple of % error in the distance traveled over a trip. I guess this means I am doing even a little better than what Scangauge reads.

abcdpeterson · #4 05-25-2009, 11:26 AM

ya most everyone reports some lingth of lag before scangauge starts reading again.

When in FAS, does your Scangauge show 9999?

Die2self · #5 06-01-2009, 01:48 PM

Yeah, my ICE takes 7-8 seconds from the time of key off to when the SG starts receiving data again after key on so that is 5MPH loss and MPG lost do to this, so I try not to do this unless it is a long glide. It would be better if I installed a kill switch as discribed by some of the other posts on this site but I don't think I am ready for that yet.

I have also noticed a few times I will key off and back on and the SG will just go blank and I will have to "wake" it up again and lose a few more MPG's