Should I mod the maf...I did once...but when I brought it to shop for new gas tank they felt the need to put a new one for some odd reason in because they said the sensor got too dirty for the burn on relay to work. Has anyone else modded their maf and had idling problems or anything? Any not mod their maf for a specific reason-Modding as in removing screens and definnig it.

 

http://www.gmtips.com/3rd-degree/dox...maf-screen.htm

 

Mike's article appears to be mostly correct. It is important to understand what Mike has described about the various functions of the screens. Least important is the "filter" idea. Most important is the need to create controlled turbulence in the intake air flow to get an accurate measurement in the sampling tube of the MAF.

If you really want to spend all your time at WOT and feel the need to eliminate the MAF screens, you're wasting your time. You really need to convert to speed/density and tune via programming. If you want any kind of emission control and fuel mileage (and engine life), be very careful about how you alter the MAF.

 

I wouldnt do it IMO

 

i did it, no problems with at idle or WOT or anywhere inbetween. BUT I also didnt notice ANY differnce in doing it.

 

nobody should notice a difference because the cfm for the maf sensor already outflows the whole intake system. its like putting a 3" catback exhaust on your car with a 2" cat, its only gonna flow just as much as the 2" cat can. and why risk something that does nothing for a $300 dollar sensor, the screens are there to protect the wire inside it, and by removing the screens, you put the wire in danger.

 

Look at this....

http://www.efitune.com/forum/index.p...=ST&f=2&t=349&

 

Yep, just saw that today when a friend was doing some tuning on my car. I removed the screens on the MAF 5 years ago when it seemed like the thing to do. Now I know I shouldn't have. At least it's fixed now in the code, and runs much better.

 

You know putting a 3" catback on a 2" cat equipped car will still show an improvement. The restrictions are cumulative. Yes, there is a bottleneck, but the smaler the bottle neck the better. And I agree, removing the screens is pointless and risky.