Mass air meter calibration needed?

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Jul 16, 2011 | 06:51 PM

bigern6697

Thread Starter

Mountain Pass

Joined: Apr 2003

Posts: 139

Likes: 0

From: Pryor, OK USA

Mass air meter calibration needed?

I am soon to do a mass air conversion on my 92 f150 5.0 manual tranny 4x4. I have an A9P computer and am going to build my own harness. I am leary of buying used mass air meters since you dont know what they have been through or how the are calibrated. So what are my options for a mass air meter? Can I just go buy a remaned from orielly's and run with it or will I have to get it calibrated as well?

Thanks in advance for the help.

Jul 17, 2011 | 09:59 AM

Conanski

FTE Legend

Joined: Jun 2006

Posts: 31,930

Likes: 1,499

From: Ottawa, Ontario

The computer holds the MAF transfer function... the meter itself isn't calibrated. Because of this you need to use the meter the computer is programmed for or have the transfer function for whatever meter you get programmed into the computer. The second option has a catch though, the computer itself isn't programmable so you need to add a module to the J3 port that is programmable, and these are available as a pre burned "chip" or a DIY tuner interface like the Moates Quarterhorse.

Jul 17, 2011 | 10:24 AM