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Reverand Jim 11-05-2002 07:33 PM

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?

bonnie94ssei 11-05-2002 09:26 PM

It's 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.

95BonnevilleSESC 11-06-2002 12:53 PM

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!

Rosco the Iroc 11-06-2002 06:03 PM

huh- now I know why it did not work on mine.

willwren 11-06-2002 06:17 PM

New topic in Techinfo, Tech-know-how, all the way at the bottom...It covers this completely.

Reverand Jim 11-07-2002 12:50 AM

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 :spin2: .

willwren 11-07-2002 03:47 AM

Another happy customer!

2001SSEi 11-10-2002 12:29 AM

This was serious advise. I'm impressed.

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