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Fuel Consumption - Fuel Filter?? 

 

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 Post subject: Fuel Consumption - Fuel Filter??
Posted: Mon Jun 02, 2008 8:51 pm 
Getting Side Ways
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Had the coil pack and fuel filter replaced, and since then the trips been reading 11.5-12, before which it was 10.5-11.

The mech said he fuel filter which was fitted didnt flow as well as the one he replaced it with. I forgot what he said they flowed, but he said there was a 5kpa?? difference.... maybe 5 psi.... meh anyway -

Does the computer need to be reset? or am I just gunna have to put up with it?

 

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Posted: Mon Jun 02, 2008 9:09 pm 
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A different filter wouldn't make that much of a difference??? Unless the old one was rediculously blocked??

I've never noticed changes in economy from a filter change.

Andrew

 

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Posted: Mon Jun 02, 2008 9:56 pm 
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My EL had the best fuel economy with a blocked fuel filter...9L/100km...changed it over and BAM 14L/100km. That was when I just got the car and the fuel filter was literally blocked to s**t. After trying to blow through it 3 times, eventually all the black soot that was in it came out. It was chunky.

But yes, the fuel filter could have played a role in your fuel economy.

phong =P~

 

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Posted: Mon Jun 02, 2008 10:54 pm 
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I dont know whether it was a good or bad thing, the car has more power above 4k rpm to redline - it used to feel a bit choked. The old fuel filter was pretty blocked up, but I didnt think it was thaat bad... no real chunks just a bit of sludge.

 

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Posted: Mon Jun 02, 2008 11:22 pm 
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If it was blocked enough to cause the car to run lean, the ECU would have seen this in closed loop operation and learnt around the lean condition.
So when a new filter went in, flow picked up, and it runs rich.
ECU reset is worth a crack to clear what the ECU has learnt.

 

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Posted: Mon Jun 02, 2008 11:40 pm 
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Battery will be unplugged 1st thing in the morn... if its not raining.

 

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