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Old 11-06-2013, 10:16 AM   #11
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Quote:
Originally Posted by trollbait View Post
I believe that manuals tend on the aggressive side for DFCO.
My 2008 VW was not.

Anyway, it certainly is one of the two mentioned and likely possibilities, either inability to detect and display DFCO by monitoring equipment or lack of DFCO (whether because it's not there at all, or because it's very shy, perhaps requiring a number of uncommon conditions to be met).
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Old 11-06-2013, 03:21 PM   #12
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A good thought... I will have to monitor fuel flow rate to be sure... I assume that if dfco were active, it would drop to zero or near it... On a side note, the one time i tried EOC-ing, my instant MPG jumped to a thousand(999.9)
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Old 11-07-2013, 01:51 PM   #13
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Quote:
Originally Posted by 19bonestock88 View Post
A good thought... I will have to monitor fuel flow rate to be sure... I assume that if dfco were active, it would drop to zero or near it... On a side note, the one time i tried EOC-ing, my instant MPG jumped to a thousand(999.9)
Timing advance is another one to watch.

Any model specific forums? Users there might have more info.
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Old 11-07-2013, 03:22 PM   #14
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I am on a suzuki forum, but they are more of a performance/ maintenance/appearance based forum... I guess daewootech would have the info... But im on enough forums already, lol
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Old 11-13-2013, 08:16 PM   #15
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I have gotten some info on this car by asking a member on the suzuki forum who has built one up for performance... There is DFCO, but it is only active under a certain set of conditions, one possibly high RPM, the guy said his only ever kicked on over 3000 RPM, so thats pretty much useless to me in normal driving... He also said that there is no alternate timing map for higher octane, and he told me that the cooling fan comes on low at 97C and high at 99C...
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Old 11-14-2013, 06:21 AM   #16
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Sounds like the DFCO in the HHR. I only saw it when downshifting to a stop.
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Old 11-17-2013, 01:21 PM   #17
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Is it correct to assume that when a vehicle uses DFCO, it goes into open loop, right? It only uses it about 30-40% of the time...
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Old 11-17-2013, 03:27 PM   #18
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Yes, that is correct. Once it's warmed up and there's nothing wrong with it, there probably aren't many other reasons it would go open loop so if you see it when you expect DFCO you probably are DFCOing.
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Old 11-17-2013, 03:36 PM   #19
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Okay... So it is better to DFCO rather than coast with clutch in if you can, right?
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Old 11-17-2013, 03:44 PM   #20
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At any rate, my FE is getting better...
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