Took out MAF screen!
I'm "Apache" a psycho dog
Joined: Jan 2001
Posts: 3,085
Likes: 31
From: N.J.
Re: Took out MAF screen! (jschindler)
I think you may be correct in your theory, but as a total package of mods im sure you would see an improvment, so there lie's that never ending chase for more power :chevy
Le Mans Master
Joined: Sep 2001
Posts: 5,022
Likes: 1
From: TEXAS
Re: Took out MAF screen! (Rob 99)
I kind of remember reading that for 02 LS1's, if you take out the screen, the PCM cannot adjust enough to compensate for the change in air flow. The computer program in the 02's has less of a range for adjustment. Anyone else read that?
[Modified by 123Gone, 1:19 PM 6/28/2002]
[Modified by 123Gone, 1:19 PM 6/28/2002]
Le Mans Master
Joined: Apr 2001
Posts: 8,133
Likes: 144
From: Ex-SF Bay Area; now happily Denver area
Re: Took out MAF screen! (jschindler)
...And there is not a one of you who can feel 5 rwhp SOTP's.
Melting Slicks
Joined: Jun 2001
Posts: 2,565
Likes: 2
From: Chicagoland Illinois
Re: Took out MAF screen! (FunDriver)
...And there is not a one of you who can feel 5 rwhp SOTP's.
I was on a dude ranch in Montana once and I can tell you that after a day of riding, I could really feel just one horsepower in the seat of my pants!!! :D :D :D
I was on a dude ranch in Montana once and I can tell you that after a day of riding, I could really feel just one horsepower in the seat of my pants!!! :D :D :D
Racer
Joined: Aug 2001
Posts: 451
Likes: 0
From: Champaign IL
Cruise-In III Veteran
Re: Took out MAF screen! (StormCrow)
Ok, latest and last update for anyone who was following my problems with surging after I took my MAF screen out.
After doing an idle relearn and driving it about 30 or 40 miles, the surging went away. Everything works fine now, though my Blackwing seems to whistle a lot more :)
After doing an idle relearn and driving it about 30 or 40 miles, the surging went away. Everything works fine now, though my Blackwing seems to whistle a lot more :)
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Michael S. Palmer
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Re: Took out MAF screen! (dads01dream)
The problem with this mod on a 2001/2002 is that you cannot undo it easily; going back to the way is was before if you encounter problems). Most destroy the screen when removing it (or mess it up enough to where reinstallation is impossible).
Racer
Joined: Aug 2001
Posts: 451
Likes: 0
From: Champaign IL
Cruise-In III Veteran
Re: Took out MAF screen! (silversport)
The big question, now...did you get more power...was it worth it? :chevy :seeya
There is a way to get the MAF screen out with minimal damage, though. I used an Xacto knife, stuck it into the edge, and then wiggled it until the end popped out so I could pull it out. It didn't leave any shards or scraps of metal, but then, I haven't tried putting it back in so YMMV
Safety Car
Joined: Sep 2000
Posts: 3,604
Likes: 396
From: Austin, TX
Re: Took out MAF screen! (StormCrow)
Pulled mine yesterday.....definitely is breathing easier....the exhaust tone seems to be a little deeper now as well. I trashed the screen pulling it out so hopefully I won't need to put it back :eek:
Racer
Joined: Aug 2001
Posts: 451
Likes: 0
From: Champaign IL
Cruise-In III Veteran
Re: Took out MAF screen! (PewterC5)
I put mine back in a few days ago, because I got tired of always wondering whether I was getting surging or not. I noticed the most surging when I was close to redline in first gear, but I suspect a lot of people won't notice it enough to bother them.
[Modified by StormCrow, 10:02 AM 7/5/2002]
[Modified by StormCrow, 10:02 AM 7/5/2002]
Le Mans Master
Joined: Jul 2000
Posts: 7,758
Likes: 0
From: Fort Worth Texas
Cruise-In II Veteran
Cruise-In III Veteran
Re: Took out MAF screen! (BodaciousBlue)
I am considering to remove my MAF screen. One Question. Removal of MAF Screen...will it effect the Smog test? Thanks :seeya
Pro
Joined: Jun 2000
Posts: 572
Likes: 0
From: kansas city KS
Re: Took out MAF screen! (RPOZ4Z)
I would not recommend doing this mod, unless have access to an Autotap or other scan tool to see what it is doing to your A/Fs. If you are running rich already, I would go for it and see how it effects you. Good luck
Le Mans Master
Joined: Jul 2000
Posts: 7,758
Likes: 0
From: Fort Worth Texas
Cruise-In II Veteran
Cruise-In III Veteran
Re: Took out MAF screen! (RPOZ4Z)
The MAF Screen does not play a role in emissions control.
Hey kewlbrz!
you're a poet and don't know it! :D
Pro
Joined: Nov 2001
Posts: 697
Likes: 0
From: Albuquerque NM
Re: Took out MAF screen! (tshac)
Wow, this post is getting big. I started with my screen in and getting my LTFT's to near zero. Pulled the screen and cut out the dividers. MOST IMPORTANTLY, I blended the cut areas including blending out the ridge left where the screen was seated, I cannot believe that most people leave that ridge there. Did a 2 hour relearn and found my LTFT's were now lean. Reprogrammed the MAF tables by 8% richer and did another 2 hour relearn. LTFT's are now at near zero again and NO SURGING! I have to believe that adding an 8% increase to the MAF table to get zero trims must add something to the overall power. I think that if you start out rich and do this, it will help; but if you start out lean and do it you may hurt yourself if you don't reprogram. Just my thoughts on the subject.