I have the latest Beta software for TouchScan which uses the OBD-II interface to compute MPG. Without MAF information which the Insight does not provide it uses another method to compute MPG. In the computation, one of the fixed inputs is the Volumetric Effiency. It is presently set at 65% but I can change that as need be.
Anyone know a good value to use there for the 1 liter Insight engine??
__________________
Jim Isbell
2000, 5 speed, 250,000 miles
"If you are not living on the edge, well then,
you are just taking up too much space."
I have the latest Beta software for TouchScan which uses the OBD-II interface to compute MPG. Without MAF information which the Insight does not provide it uses another method to compute MPG. In the computation, one of the fixed inputs is the Volumetric Effiency. It is presently set at 65% but I can change that as need be.
Anyone know a good value to use there for the 1 liter Insight engine??
Couldn't you figure out what it should be by calibrating against the Insight's instantaneous mpg meter. That assumes that VOL EFF is a fixed value.
__________________
Eric...
No normal cars for me! Ill be back when i get the CRZ... Y2K Insight-New Formula RedSold!
1999 Isuzu VehiCross-ebony black SOLD!
1978 Porsche 924-building into racer. soon to be daily driver.
1982 Porsche 931- building into road endurance racer! project on indefinite hold.
All I can tell you is, on my ScanGauge II, when I set the engine displacement at .8, the MPG display perfectly matches the Insight dash display. I don't know if that will help you...
__________________
Driving on down the road in my 2001 CVT, going "Boogety Boogety" ...and until avatars are provided, my car looks just like the original silver Insight on the header, above... =)
All I can tell you is, on my ScanGauge II, when I set the engine displacement at .8, the MPG display perfectly matches the Insight dash display. I don't know if that will help you...
BUT...isnt the diplacement 1.0? If so, then are you are compensating for an erroneous Volumetric Efficiency?
I will try 0.8 and see if it works. Right now it is reading HIGH
I am NOT using ScanGauge, I am using TouchScan on my mini PC.
__________________
Jim Isbell
2000, 5 speed, 250,000 miles
"If you are not living on the edge, well then,
you are just taking up too much space."
The problem has been partially fixed by changing the software and removing a filter. I am still using 1 litre for the engine size and it now matches the FCD up to about 95mpg but it flattens out there and the TouchScan reads a bit low so I think I will try adjusting the VE.
__________________
Jim Isbell
2000, 5 speed, 250,000 miles
"If you are not living on the edge, well then,
you are just taking up too much space."
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.
Volumetric Efficency?
