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Old 09-30-2009, 10:40 PM   #61 (permalink)
cfg83
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Join Date: Dec 2007
Location: Southern California
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1999 Saturn SW2 - '99 Saturn SW2 Wagon
Team Saturn
90 day: 40.49 mpg (US)
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dcb -

Quote:
Originally Posted by dcb View Post
Cfg, does sg1 have an open loop indicator?
Yes, it does have an open/closed loop indicator.

Another interesting difference is that when I am in DFCO, it stays in closed-loop. Others have reported that open-loop and DFCO go together, but I am not seeing this in my 1999 Saturn. I am thinking, however, if I was on a super long downhill, it would eventually go open-loop if my exhaust-heated narrow-band oxygen sensor cooled off to the point where it was no longer accurate.

CarloSW2

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Last edited by cfg83; 09-30-2009 at 10:46 PM..
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