Air filter - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 05-24-2006, 10:35 PM   #1
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ok i was wondering if the stock gutted airbox with a k and n filter is it is the same or better then a rice pipe and cone filter....also y is it right after i gutted my air box an engine code came on saying i was running to lean....i think it was p0171...now i put on a rice pipe and cone filter....same thing happens to lean....
but it does wine alot more sounds cool! just need a smaller pully now!
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Old 05-24-2006, 11:58 PM   #2
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I doubt that either filter setup is causeing the lean condition; as I would also hold off on the smaller pulley till the reason for the lean condition is pinpointed and taken care of.

Ed
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Old 05-25-2006, 11:16 PM   #3
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ya i was reading about it online and i think i may have a clue as to what is going on....
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Old 05-25-2006, 11:23 PM   #4
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well a good thing to do when ever you make a chane in intake, exahust or proformance its a good idea to reset you PCM (computer), it remembers certin things, im sure someone can explain it bette then i can.
bt what you do it just disconnect you Bat for like 15min and then hook it back up and go for a drive for about 10miles.
take of normal for you, then do some WOT runs, and just some normal driveing...



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WOOT!!!! 700th Post.
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Old 05-25-2006, 11:25 PM   #5
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ok i was wondering if i should do that or not....but ya i removed my MAF screen and i read online the it could be a dirty MAF sensor so i think ill try cleaning that to...i guess it say to just take it off and spray it with some brake cleaner....
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Old 05-25-2006, 11:29 PM   #6
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umm NO, NO, NO NOOOOOOOOOO

do NOT clean your MAF sensor with brake cleaner!!!!! Clean the sensor with alcohol and some cotton swabs. You do not need to have the whole metal housing to be clean...just having the sensor clean will do it. If you put brake cleaner on it..you most likely WILL kill your sensor...and THEY ARE VERY EXPENSIVE!!!
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Old 05-26-2006, 01:59 PM   #7
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REALY??? wow idk thats what some website seid ....ok ill stay away from that ...so do i have to remove the whole unit or can i get to the sensor with a cotton ball without taking the unit off?
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Old 05-26-2006, 02:03 PM   #8
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nahh, It needs to come off to clean it, otherwise you could slip and break the ever so brittle wires, and you will regret it. They aren't hard to take off. It'* the black box on the TB, just take the 3 screws out and pull it out, and clean with a q tip ever so gently.

EDIT - Actually, here'* a way better writeup than what I told you.

http://www.bonnevilleclub.com/forum/...e=article&k=64
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Old 05-26-2006, 02:10 PM   #9
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ok i just printed that up ill go and try it thanks for the help ill let you no what happens....
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Old 05-26-2006, 02:12 PM   #10
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OK, I'll third the alcohol and Q-tip method.

Also, it seems unlikely that either your gutted air box or your CAI caused a lean fuel bank one condition (though I suppose remotely possible). More likely will be your battery connections as in this thread:
Lean Fuel Bank One

Or a sensor.

And you definitely want to get that issue resolved before even thinking about a smaller pulley. Then you should get a complete scan to understand your fuel baselines before going forward with that smaller pulley. Do a little searching on smaller pulleys in the Forced Induction section.
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