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New Car - Fuel problems 

 

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 Post subject: New Car - Fuel problems
Posted: Thu Dec 14, 2006 11:35 am 
Oompa Loompa
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Location: sydney
NSW, Australia

hey guys

i bought my ef manual about 2 weeks ago and the first two days it was avging about 12-13/100km i then filled it up a few days later and reset the trip computer and it says im avging 22l/100kms whats wrong guys?

my car is also having missing problems when idling... any idea?

i really wanna get this prob fixed ive done like 200kms and my tank it below the quarter line :shock: :shock:

i really do hope i can improve the fuel effeciency..

cheers
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Posted: Thu Dec 14, 2006 7:52 pm 
Getting Side Ways
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Ride: Ford FPV FG F6 310

Power: 149 rwkw

Location: Brisbane
QLD, Australia

well if it's missing, it sounds like it's running rich. is the miss heavier when the car is warmed up?
what have you replaced so far? leads/plugs?

 

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Posted: Thu Dec 14, 2006 7:54 pm 
Fordmods Junkie
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Ride: EL Fairmont, VFR400 racer

Power: 144 rwkw

Location: Melbourne
VIC, Australia

O2 or map sensor s**t itself? or vacuum leak?

phong =P~

 

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Posted: Thu Dec 14, 2006 9:15 pm 
Oompa Loompa
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Location: sydney
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how much will an oxygen sensor set me back?
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Posted: Thu Dec 14, 2006 9:24 pm 
Getting Side Ways
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Location: Perth
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$80

 

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Posted: Thu Dec 14, 2006 9:26 pm 
Getting Side Ways
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Power: 178 rwkw

Location: melbourne
VIC, Australia

after resetting the trip, allow it 2 weeks to truly average out your fuel consumption.

 

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Posted: Thu Dec 14, 2006 9:58 pm 
Getting Side Ways
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well i will bet my left nut that your idle problem is being caused by a dead cam angle sensor and vacume leaks.

exact same problems i had with my car, vacume leaks and o2 sensor on the way out fixed my fuel consumption.
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Posted: Thu Dec 14, 2006 11:04 pm 
Oompa Loompa
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are vacume leaks a big/costly problem?
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Posted: Thu Dec 14, 2006 11:22 pm 
Getting Side Ways
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im not sure, as i never paid for any of the labour, but it took a couple of days to find all the leaks, wait for new parts, dyno test, and replace faulty parts after diagnostics had been run.

so it depends, some may be as simple as Map sensor hoses, but some are right up under the manifold.

to be honest, id recomend taking it to a reliable mechanic who can hook it up to diagnostics so they can pinpoint the problem instead of you just taking our advice and replacing parts which may be the problem but may well not be causing the problems.

it is often hard to find it all your self as fuel consumption can be a whole host of things, which rely on each other to make it all work. (ie: vacume)
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