View Single Post
Old 06-04-2009, 12:57 PM   #2 (permalink)
Daox
Administrator
 
Daox's Avatar
 
Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,203

CM400E - '81 Honda CM400E
90 day: 51.49 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 56.69 mpg (US)

Daox's Volt - '13 Chevrolet Volt
Thanks: 2,501
Thanked 2,585 Times in 1,553 Posts
#1 is probably normal engine operation. I've noticed my matrix will idle at about 1100 rpm in neutral most of the time. If I stop at a light for a while, it kicks down to 750.

#2 is probably a scangauge quirk. The engine probably does go into open loop for a fraction of a second. So, the scangauge updates and sees its in open loop. The engine quickly changes back to closed, but you have to wait for the scangauge to update again to see that its back in closed loop. There is a setting somewhere in it to alter refresh time. By default its set to slow or normal. There is a fast option, but honestly it doesn't seem to make a huge difference.
__________________
Current project: A better alternator delete
  Reply With Quote