MPG not what it used to be!!

Started by 2 of the left, November 8, 2012, 22:53

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2 of the left

November 8, 2012, 22:53 Last Edit: January 1, 1970, 01:00 by Guest
In the last month my mpg has dropped! I have checked the usual culprits but need suggestions,in case I've missed something!!  s:? :? s:?
SI VIS PACEM PARA BELLUM!!

mrzwei

#1
November 8, 2012, 23:43 Last Edit: January 1, 1970, 01:00 by Guest
Apart from the obvious right foot comments then fuelllng is controlled by the ECU based upon inputs from the MAF, 02 sensors, cam / crank sensors, and the state of the injectors and possibly plugs.

Do the easy stuff first (clean the MAF and plugs) and put a code reader on it to see if there is anything stored.
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AmeR

#2
November 9, 2012, 07:44 Last Edit: January 1, 1970, 01:00 by Guest
My MPGs used to drop off a tad during colder months... Couldn't tell you if that's still true though!  s:) :) s:)

PeteT

#3
November 9, 2012, 08:50 Last Edit: January 1, 1970, 01:00 by Guest
As the temperature has dropped, I've lost about 3-4mpg on my normal commute.

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Pete

dcod

#4
November 9, 2012, 08:50 Last Edit: January 1, 1970, 01:00 by Guest
Funny you should say this, my last MPG dropped from 32 to 28 ... but I can't remember put my foot down much ... I've just started using Shell rather than Asda   s:? :? s:?

My engine is also running at about 84 degrees rather than the normal 86.
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onion86

#5
November 9, 2012, 10:45 Last Edit: November 9, 2012, 12:44 by onion86
As it's been bloody cold I'd say it's most likely just down to that!  m http://alternativefuels.about.com/od/en ... elecon.htm m
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jonone

#6
November 9, 2012, 12:18 Last Edit: January 1, 1970, 01:00 by Guest
cooler air same amount fuel = performance increase for less pedal could be fan / heater reduces mpg
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simers

#7
November 9, 2012, 18:45 Last Edit: January 1, 1970, 01:00 by Guest
I'm gone below 28mpg now... I'm doing 24ish...


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Anonymous

#8
November 9, 2012, 18:56 Last Edit: January 1, 1970, 01:00 by Guest
More fuel required for colder air as it denser
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