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Old 06-12-2008, 09:47 PM   #3 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
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Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 52.07 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 61.98 mpg (US)

Fancy Metro - '14 Mitsubishi Mirage top spec
90 day: 58.72 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)
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It won't go through the same length of open loop enrichment that you experience from a cold start, because the ECU uses the coolant temp to set that condition.

My car remains in open loop for three seconds after a warm clutch start. But what you described makes me think it may differ from car to car.

Quote:
I'm just trying to do a little math and see if it would be more beneficial to P&G with engine braking or EOC
P&G with engine braking isn't P&G, and I'd be surprised if you weren't getting lower fuel economy than if you just cruised at a constant speed.

Quote:
I suppose I can do a little A-B-A testing but if anyone has looked into this before, that would save me the trouble
Sounds like a plan.
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