cone filter? 99 buick regal gs

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Adam Marcum
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Year and Trim: 1999 regal gs
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cone filter? 99 buick regal gs

Post by Adam Marcum »

ok had the gutted air box and a hi flow filter on my 99 buick gs. and it runs fine tell i went to a pipe and a cone filter .and now the car has a miss on the topend. between 4000.and 5900. r.p.m?.like a misfire..?does the computer need time to readjust for more air flow or could i have uncovered a week fuel pump do to more air being sucked in..? i have no idea.
1999 regal gs
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Re: cone filter? 99 buick regal gs

Post by 00Beast »

Lets see a picture. Swap your stock box on there and see if the misfire goes away.
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Adam Marcum
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Re: cone filter? 99 buick regal gs

Post by Adam Marcum »

went and but the stock box back misfire is gone .and i cant get a pic right now camera is broke..and sorry i posted in the wrong section please move it for me..
1999 regal gs
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Re: cone filter? 99 buick regal gs

Post by 00Beast »

What brand filter is it? I'm almost thinking the filter you got is restricting flow at High RPM, causing your misfire...
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willwren
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Re: cone filter? 99 buick regal gs

Post by willwren »

Topic moved here for now until we find out what the issue really is.

Details on the filter you installed would be very helpful.
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Adam Marcum
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Re: cone filter? 99 buick regal gs

Post by Adam Marcum »

sorry for the delay..the car was in a accident so been busy for a day or two..car is running good now drove it for about 45 minuets and it cleared up. and it is a k/n filter.? so i don't know what it was computer? or to much oil in filter it was pre oiled.
1999 regal gs
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