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Old 04-30-2012, 08:31 PM   #164 (permalink)
mjspiess
EcoModding Lurker
 
Join Date: Nov 2009
Location: Lansing, MI 48917
Posts: 70

The Blue Bomber - '95 Geo Metro
90 day: 52.09 mpg (US)
Thanks: 3
Thanked 8 Times in 6 Posts
I installed an SPDT switch today to enable switching back and forth from the MAP sensor & VSS. I also switched the PPM to 8000 on the cruise servo to give it another try now that I know how the cruise reacts when hitting the Set button. Initially the cruise would over react, then under react, and repeat. I now know, when setting the cruise to a certain MPG, you need to keep your foot over the gas pedel so it doesn't over/under react. Once it settles, it's good to go. So I gave it a try at 8000 PPM and it works just fine.

Out of curiosity, I switched from MAP to VSS on the fly and to my surprise, it works just fine! All I have to do is reset the speed/MPG and it's good to go. I assume it's working because 8000 PPM is perfectly divisible by 4000 PPM and the servo is seeing every other pulse? Either way, I am really happy I can set my cruise at a given speed or MPG at the flip of a switch
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