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question regarding fuel economy on trip comp 

 

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 Post subject: question regarding fuel economy on trip comp
Posted: Tue Aug 02, 2005 12:37 pm 
Oompa Loompa
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Age: 32

Posts: 23

Joined: 22nd May 2005

Ride: AU fairmont

Location: canberra
ACT, Australia

occasionally in the instant fuel economy on my trip computer in my au fairmont, the reading jumps from 8/10/whatever its doing while not flooring it, to like 40something for half a second. it does this a couple of times in say a 5-10minute trip. its not a big deal and it wouldnt affect economy any significant amount but im just interested if mine is the only one that does it, and if its normal etc?
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Posted: Tue Aug 02, 2005 3:11 pm 
Getting Side Ways
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Age: 43

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Ride: 2009 FG XR6 Sedan

Location: Melbourne
VIC, Australia

Mine does it even with cruise on at 100km/h jumps from 8 to 50 then its fine again.
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Posted: Tue Aug 02, 2005 3:43 pm 
Getting Side Ways
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Ride: Territory TX AWD & AUII XLS EGAS

Location: East Kurrajong
NSW, Australia

Don't believe what they say ... they always ready screwy readings.

 

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Posted: Tue Aug 02, 2005 8:27 pm 
Getting Side Ways
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Ride: BF MKII V8 Fairmont Ghia

Location: Perth
WA, Australia

yeh, on instant i can hit 99L/100km in dads if i nail it to the redline (ef mont)

 

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Posted: Tue Aug 02, 2005 8:30 pm 
Technical Contributor
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Age: 31

Posts: 6047

Joined: 12th Nov 2004

Ride: Ford Ef Futura

Location: Perth
WA, Australia

I would worry if the average l/km is doing that.

It could just be bumps in the ground shaking the needle or sensor.
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Posted: Tue Aug 02, 2005 8:31 pm 
Fordmods Newbie
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Age: 38

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Joined: 9th Mar 2005

Location: Churchill
VIC, Australia

some of those inst trip computers are unreliable as they cannot keep up with the signal they recieve from the ecu... But in most cases they are pretty close to the mark on trips.... some of them are just slow to adjust..
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Posted: Tue Aug 02, 2005 10:43 pm 
Stock as a Rock
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Location: somewhere
QLD, Australia

my el fairmont on the highway sitting on cruise at 100km/hr. Trip meter at (instant) sits between 5L-9L depending if i am going up a hill or down one, all day everyday, never jumps up. always a solid reading.

Yeah so there is something wrong with your car..........


Cheers Luke.
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Posted: Tue Aug 02, 2005 10:54 pm 
Fordmods Newbie
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Age: 31

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Ride: au futura

Location: albany
WA, Australia

mine doesn't do it... i'd get it looked at just to be safe hey. it doesn't cost anything to get it looked at...
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Posted: Tue Aug 02, 2005 11:11 pm 
Getting Side Ways
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Ride: AU FAIRLANE

Location: SWAPPERS XING
VIC, Australia

Mine does it so l just rely on the dto and thats always pretty close to the mark.

 

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