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Old 12-09-2010, 02:45 AM   #2 (permalink)
bestclimb
Smeghead
 
Join Date: Oct 2009
Location: South Central AK
Posts: 933

escort - '99 ford escort sport
90 day: 42.38 mpg (US)

scoobaru - '02 Subaru Forester s
90 day: 28.65 mpg (US)
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Drive along at 3000rpm in 3rd gear. Take your foot off the gas and you will slow down. If the deceleration stops or significantly slows down at some RPM (around 1300rpm +- 500) you will have found the point at which DFCO is disengaging.

If you have Fuel injection it is likely you have DFCO.
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