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Poor fuel compsumtion any ideas? 

 

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 Post subject: Poor fuel compsumtion any ideas?
Posted: Sat May 25, 2013 11:38 pm 
Getting Side Ways
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hey guys just notice that I have poor fuel average per 100kms im not to sure if this happen after a put a new bosch dizzy on or before but it should not be no where this high as u see in the pics. the fule needle is under half way and this is how many kms i've gotten so far from a full tank.

 

 

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 Post subject: Re: Poor fuel compsumtion any ideas?
Posted: Sat May 25, 2013 11:45 pm 
Getting Side Ways
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does it run ok? blow black smoke when putting your foot down? could be a number of things, but o2 sensor would be my first guess

 

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 Post subject: Re: Poor fuel compsumtion any ideas?
Posted: Sun May 26, 2013 1:15 pm 
Fordmods Junkie
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Heavy foot?

I'd suggest O2 sensor first if it hasn't been replaced before, check map sensor and for any bad vacuum leaks.

 

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phongus = Post whore 2006
EL XR6 motor, EL ECU + J3 chip, WADE 1673 Camshaft, 3" S/S intake, Pacy 4480, 2.5" Hi flow cat, 2.5" Lukey exhaust.
Max Power = 144.6 rwkw (03/05/2008)

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 Post subject: Re: Poor fuel compsumtion any ideas?
Posted: Sun May 26, 2013 6:07 pm 
Getting Side Ways
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my guess would be a vacuum leak somewhere cause I replace the 02 sensor a few months ago and it shouldn't be that. The vacuum hoses in the engine bay can u buy them anywhere or is there only certain places that sell them?
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 Post subject: Re: Poor fuel compsumtion any ideas?
Posted: Sun May 26, 2013 6:16 pm 
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jamie22_cole wrote:
my guess would be a vacuum leak somewhere cause I replace the 02 sensor a few months ago and it shouldn't be that. The vacuum hoses in the engine bay can u buy them anywhere or is there only certain places that sell them?


they are just rubber hoses...nothing special about them. Remove one and take it to an auto shop or bunnings and find something that fits.

Does the engine idle rough? Do you feel lack of power at low RPM?

 

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phongus = Post whore 2006
EL XR6 motor, EL ECU + J3 chip, WADE 1673 Camshaft, 3" S/S intake, Pacy 4480, 2.5" Hi flow cat, 2.5" Lukey exhaust.
Max Power = 144.6 rwkw (03/05/2008)

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 Post subject: Re: Poor fuel compsumtion any ideas?
Posted: Sun May 26, 2013 6:37 pm 
Getting Side Ways
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If youv touched the distributor check the ignition timing. Air filter clogged?

 

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 Post subject: Re: Poor fuel compsumtion any ideas?
Posted: Sun May 26, 2013 6:58 pm 
Getting Side Ways
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did the timing after I put the new dizzy in. ill check the air filter tomorrow.
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 Post subject: Re: Poor fuel compsumtion any ideas?
Posted: Mon May 27, 2013 10:53 pm 
Getting Side Ways
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well I check the air filter seem in good working order and vacuum hoses cant see no leaks. car nearly stall when I pull the hose of the map sensor. maybe thinking it could be the j3 chip? what does the throttle position sensor on the side of the throttle body housing do?
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 Post subject: Re: Poor fuel compsumtion any ideas?
Posted: Wed Jun 05, 2013 10:33 pm 
Getting Side Ways
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can the throttle position switch cause poor fuel consumption?
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 Post subject: Re: Poor fuel compsumtion any ideas?
Posted: Wed Jun 05, 2013 10:38 pm 
Fordmods Junkie
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normally as far as i know ...

if ya got high fuel consumption ... ya foots real heavy :roll:

OR there's a problem on the fuel supply side
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