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Old 12-09-2010, 12:32 PM   #3 (permalink)
2003protege
EcoModding Enthusiast
 
Join Date: May 2008
Location: Austin
Posts: 155

Silver Bullet - '03 Mazda Protege LX
90 day: 29.51 mpg (US)

Silver Bullet - '03 Mazda Protege LX
90 day: 37.06 mpg (US)

Blaze - '17 Ford Escape
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Quote:
Originally Posted by bestclimb View Post
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.
or you could try 1st gear if you're not sure, then you'll REALLy know, lol! Just don't try to do it whilst drinking a hot beverage...
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