obdII mass air on a fox

Pigtail or no pigtail, i doubt it's going to work right.
Sell it and buy the right meter for your car.

The MAF body and sensor are designed to match each other. Therefore you can't swap sensors between different part number MAF bodies and maintain proper calibration. The assembly is designed to match the computer’s internal program, and swapping a different MAF can upset the computer's calibration. In other words, your monster MAF won't match the calibration of your 5.0 Mustang computer.

The only other MAF that is a one for one swap for a 93 and earlier 5.0 Mustang is the 94-95 Mustang MAF.

94-95 Mustang GT MAF - $40-$100. It is 70 MM instead of the stock 55 MM on regular stangs built prior to 94. It uses a slip on duct on the side that goes to the throttle body and a 4 bolt flange on the other. You need a flange adapter to fit the stock slip on air ducting that goes to the air box. Wiring plugs right in with no changes. *1 *2

*1.) Metal flange adapter Kurtz Kustomz Motorsports, Inc. KKM Buy the TR70 for $44.95. Or spend some time on eBay looking for one that may fit.

*2.) MAF & sensor interchange
The 94-95 Mustang 5.0 MAF & sensor is also found on:
1995-94 Mustang 3.8L F2VF-12B579-A2A,
1994-92 Crown Victoria 4.6L F2VF-12B579-A2A,
1995-94 Mustang, Mustang Cobra 5.0L F2VF-12B579-A2A,
1994-92 Town Car 4.6L F2VF-12B579-A2A,
1994-92 Grand Marquis 4.6L F2VF-12B579-A2A,
Evidently the –A1A, -A2A, AA, etc. on the end of the part number is a minor variant that did not change the operating specs. You should be able to ignore it and have everything work good.

Pigtail and a tune, to correct for the different MAF values. I have an OBD II meter on my 95, and many others have done the same. The 90mm Lightning MAF is a very common swap and it's from an OBD II car. You'll need something like the Moates QuarterHorse, or TwEECer, to correct it. Check out tunexchange for the MAF transfer files.

StangGT1995 said:

Pigtail and a tune, to correct for the different MAF values. I have an OBD II meter on my 95, and many others have done the same. The 90mm Lightning MAF is a very common swap and it's from an OBD II car. You'll need something like the Moates QuarterHorse, or TwEECer, to correct it. Check out tunexchange for the MAF transfer files.

Click to expand...

Spending $500 to $1000 to fix something that you can just sell on ebay and use that exact money to buy the right one is counterproductive, and downright senseless.
Just because something can be done, doesn't mean it's a good idea.

All he did was answer the question that was asked..what needs done? Answer: buy a quarterhorse or similar programable setup.. Pretty simple once you have a quarterhorse.. It's only 250$ not 500$ or 1000$

The Moates tuner requires a laptop or PC to present the information. It is not a Sunday afternoon plug it in, click here, drag there operation. It has a significant learning curve that is not for the faint of heart nor slow of mind. If you don't have a good understanding of computers or electronics, this isn't the sort of thing to jump off into.

See http://www.moates.net/quarterhorse/qh_intro_meyer.doc for more info.

With this in mind, sell your Monster MAF on eBay and visit Summit or Jegs to find a MAF that will fit you car without modification. You'll find the $250 cost of the Moates unit will pay for most, if not all, of the cost of a new MAF that will match your injectors and computer. Or do as I suggested in an earlier post, use the 94-95 Mustang MAF which is a plug and play with the addition of an adapter for the air duct.

If you eventually planned to get into tuning your own car, then now is just as good a time as any to do so....

Moates has the chips
There you will also find a link to the recommended software Binary Editor and EECAnalyzer

It takes a bit to get used to, but it is a lot of fun to learn how the Ford ecu's actually work...

The decision is yours, I enjoy messing around with the quarterhorse.. There are plenty of people on eectuning.org that are willing to help. Jrichker is right, it's not easy to learn but i enjoy challenges.