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Old 03-23-2012, 12:32 AM   #221
Scooby Specialist
Member#: 302491
Join Date: Nov 2011
Chapter/Region: Tri-State
Location: Buffalo, NY
2012 Impreza 2.0i Pr
Dark Grey Metallic CVT


Originally Posted by thom52
New POSSIBLE "fix" to try for those suffering from obscenely low gas mileage. (BELOW 20 overall for us).

The dealer hooked up our car for a diagnostic and sent us away with "no codes= no problem", BUT the car has been getting significantly better mileage since. Including a "calibrated" mixed freeway-city errand running.

Time will tell if this is a temporary "glitch" or if maybe hooking it up cleared some bad setting or something.

Car runs smoother and no hard starts since. Its only been a couple days. Time will tell, but we have some hope now.

Sooooo..... maybe try getting the dealer to run a diagnostic? MAYBE try shutting down the computer (unplugging the battery) and hooking it back up again to reset it. Just a wild guess, but might be worth a shot. (no warranties expressed or implied)
Regardless of what the trip computer shows only the actual numbers will tell. My gauge always reads 1-2 mpg higher than my actual mpg. I've tested with a GPS too to be sure my trip computer has my mileage correct. It's spot on.
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