K&N-Smooth Bellows=bad milage
08-10-2003, 08:45 AM
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K&N-Smooth Bellows=bad milage Ever since I put the K&N filter and smooth bellows in my gas milage has gone to hell, what could be the problem? Should I have it tuned? I am going to be putting L/T's on soon (within the next few weeks) and would rather not have to spend the money twice to have it tuned. Any help would be great.
08-11-2003, 06:12 AM
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Re: K&N-Smooth Bellows=bad milage 99Black Bird T/A
I have not noticed any leakage but then again I haven't done any checks for it.
theblur98ss
the filter has only been in the car for about a week and 1/2, I didn't oil it because it came oiled.
I have not noticed any leakage but then again I haven't done any checks for it.
theblur98ss
the filter has only been in the car for about a week and 1/2, I didn't oil it because it came oiled.
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08-11-2003, 07:25 AM
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Re: K&N-Smooth Bellows=bad milage Dude, you are probably driving harder to test your mods. LOL 
I've never heard of K&N oil fouling plugs. How much oil is on a filter anyway? Before my FIPK< I used to have a lid and a K&N filter. I would find deposit in the TB but never fouled plugs.
Stick a highly absorbant paper towel on both sides of your filter for a few minutes and it will absorb excess oil (Do that after cleanup and re-oiling also).
Also with more air and stock tune, it is possible that ur motor is running richer. Check A/F ratio.
I've never heard of K&N oil fouling plugs. How much oil is on a filter anyway? Before my FIPK< I used to have a lid and a K&N filter. I would find deposit in the TB but never fouled plugs.
Stick a highly absorbant paper towel on both sides of your filter for a few minutes and it will absorb excess oil (Do that after cleanup and re-oiling also).
Also with more air and stock tune, it is possible that ur motor is running richer. Check A/F ratio.
08-12-2003, 05:09 AM
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Re: K&N-Smooth Bellows=bad milage Like I said, I installed it right from the packaging, it was preoiled and the wrapping was not all oily at all, if the MAF wires are fouled, how should I clean them? should I just wipe them down with a paper towel or should I use a cleaner as well?
08-12-2003, 02:24 PM
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Re: K&N-Smooth Bellows=bad milage You can take a q-tip soaked in alcohol & GENTLY rub the little wires & sensors on the MAF to clean them. VERY GENTLY...they're delicate!
As for the smooth bellows ruining your gas mileage, never heard of it. Maybe your K&N Filter is so short that your air box doesn't seal anymore. Mine was, and I had to fashion a new seal. But I also installed a Whisper Lid.
As for the smooth bellows ruining your gas mileage, never heard of it. Maybe your K&N Filter is so short that your air box doesn't seal anymore. Mine was, and I had to fashion a new seal. But I also installed a Whisper Lid.
08-13-2003, 06:56 AM
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Re: K&N-Smooth Bellows=bad milage Not sealing will not cause bad gas mileage. However dirt will get in and mess up the engine at the long run.
Check ur A/F ratio. You could be running richer because your stock MAF,while reading more air will dump more fuel but does not advance. I do not have that problem with a HPP3 powertune since it increases the advance and compensate for the extra richness the MAF can give me.
Check ur A/F ratio. You could be running richer because your stock MAF,while reading more air will dump more fuel but does not advance. I do not have that problem with a HPP3 powertune since it increases the advance and compensate for the extra richness the MAF can give me.
08-13-2003, 05:08 PM
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Re: K&N-Smooth Bellows=bad milage OK, I replaced the stock MAF with a SLP maf and still bad milage. I travel 57 miles one way to work and eat a 1/4 tank of gas one way, what could be the issue. I don't have hpp3 or edit but was looking at buying LS1 Edit. Would this be the way to go or should I look at another avenue
08-17-2003, 09:12 PM
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Re: K&N-Smooth Bellows=bad milage Ok, I changed ouot the MAF with a 85mm SLP, and ensured that all connecting areas were tight and that seems to have taken care of the problem. Thanks for the tips.
