Screen on MAF Sensor? - 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 11-05-2002, 08:33 PM   #1
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Default Screen on MAF Sensor?

I am replacing my MAF Sensor (see recent posting about MAF Sensor problems/ECM Code 34).

While purusing this forum, I saw a few references to "removing the MAF screen".

Is this recommended? If yes, why and what are the potential drawbacks and/or special considerations?
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Old 11-05-2002, 10:26 PM   #2
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Default maf

It'* up to you. With a custom intake it may work better without the screen. Just be careful taking it out. Check "MAF Screen Removal" under "Performance" and you'll find more help.
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Old 11-06-2002, 01:53 PM   #3
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Some have had success and some have not. The typical problem is that it creates a poor idle and can sometimes through codes. This happens mostly in Bonnevilles with stock accordian intake tubing, and it is assumed that this tubing is causing air turbulance which gives a false reading from the MAF. If you are changing it anyway, remove the old one, re-assemble, and test drive it for a (short) while. See how it responds. If it runs crappy, put the new on in. If not, than you are one of the few that has a 'macigal intake'. Enjoy!
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Old 11-06-2002, 07:03 PM   #4
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huh- now I know why it did not work on mine.
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Old 11-06-2002, 07:17 PM   #5
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New topic in Techinfo, Tech-know-how, all the way at the bottom...It covers this completely.
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Old 11-07-2002, 01:50 AM   #6
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Default New MAF Sensor, the screen, and other stuff

Greetings All!
Today I took a leap of faith (on your advice) and replaced my MAF Sensor and cleaned the intakes. I tried to get a NEW AC Delco, but the cheapest I found was about $400. So, I found a remanufactured AC Delco at Advanced Auto (with a lifetime warranty) for $157.00. As it turned-out, it was incredibly simple to do the switch (easier than changing spark plugs) and the car runs sOOOOO much better.

As for the MAF screen, I decided to leave it in because it runs good enough for my purposes. However, when I get around to getting a smooth, duct-type intake 'hose', I will probably rip that sucker out and see how it goes.

Thanks again to all of you--- as a direct result of your assistance, I saved $100-$300 and the vehicle runs great!!! On top of that, it always feels better when I do the work myself (and I scored big points with the wife...). Take Care, the Reverand .
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Old 11-07-2002, 04:47 AM   #7
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Another happy customer!
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Old 11-10-2002, 01:29 AM   #8
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This was serious advise. I'm impressed.
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