Comments on: Mustang Mass Air Conversion

By: Charlie

Charlie — Thu, 22 Oct 2009 19:04:42 +0000

Andy, an SN95 (94-95) ecu will NOT work in a fox body mustang, there were too many changes in the smog standards and fuel economy between these two styles of mustangs…..it is a nice thought, I attempted the same thing, but I had to purchase an ecu from a fox. There are many part numbers that will interchange. And there is ample information available as to which of these part numbers will work in every situation, as always, good luck with your ‘Stang. Light ‘em up.

By: Andy

Andy — Sun, 18 Oct 2009 20:56:29 +0000

Hi. Does anybody know if a 1994 ecu can be used in a MAF conversion? I will be changing my 88 gt to MAF. Thanks

By: mraburn

mraburn — Wed, 14 Oct 2009 15:44:57 +0000

Guys,

To get help I would suggest heading over to our Forums where you can get plenty of tech help.

http://www.stangnet.com/mustang-forums/

By: Rob

Rob — Wed, 14 Oct 2009 15:41:35 +0000

I have an 87 Mustang GT converted to MAF having problems with car running. I have computer for an 89 Mustand Automatic won’t run with that computer. It runs on an automatic computer with NO MAF but it loads up with fuel. Any suggestions on how to get it running. I have a brand new MAF 75mm, motor is a 347 stroker, trick flow heads, trick flow cams, trick flow upper and lower intake. When the car does run but it sounds like it is mis-firing. The firing order is correct… any suggestions?

By: stangmans

stangmans — Mon, 12 Oct 2009 07:25:47 +0000

just want to know were i can get the EEC pins, im using the plug from my donor car that has already a mass air harness but im just using the plug and the 4 wires for the conversion. THANKS!!

By: chris

chris — Tue, 29 Sep 2009 07:18:46 +0000

i have a 88 lx converted to mass air flow, i want my warning lights to work can you help?? i have performer 2 upper and lower intake 24 pound injectors, e 303 cam, cold air, under drive pullys, 70mm, bbk headers, off road h pipe, 373 gears can you help me PLEASE!!!! cwehrle79@gmail.com

By: Mike Knittel

Mike Knittel — Mon, 21 Sep 2009 02:02:37 +0000

Good article…just one small detail:

“You can also use the 93 cobra computer:F3ZF 12A650 CA but it requires MAF calibrated for 24# injectors.”

This is not exactly the case. The Cobra ECM is setup to use 24# injectors, true. However the MAF is not specially calibrated for the injectors. The Cobra MAF, while larger in diameter gives the same signal comparing the same flow as the standard HO MAF. In fact the Cobra MAF can be plugged directly into a standard 89-93 HO setup with no problems. You do however need 24# injectors if you are using the Cobra ECM. The ECM is what is programmed for the injector rate.

When you see MAF “calibrated” for 24# injectors, what it is doing is skewing the MAF signal to an ECM programmed for 19# injectors but is really connected to 24# injectors. This skewing of the signal fools the ECM into trimming the fuel propoerly in what would otherwise be a mismatch.

By: tom

tom — Thu, 27 Aug 2009 17:37:18 +0000

thank you for the instructions. my son and i converted my 88lx last sunday. it worked like a charm. i used used parts. all that i had to buy new was the pins to go into the eec connector and some tubing. thanks again.

By: Kyle

Kyle — Wed, 26 Aug 2009 18:30:49 +0000

Hey Mike, thank you very much for all this. It was a breeze! I’ve been working on mine for weeks. Got a new wiring harness out of a newer fox and some one told me it was just plug and go. They were wrong! All kinds of shit. I had mechanics, and a ford dealer working on trying to find were all these wires went. Thank you very, very much. I was starting to give up. I do have the cobra eec though. Hooked a buddies gt eec up in mine and it works a lot better. So what exactly do I need to do to get mine to work. Right now I have the stock 19# injectors but I do have I 70mm throttle body and different intake. A msd ignition. Didn’t know if any of this would make a difference? I runs as is now but seams to be running rich at idle. Thanks again! Kyle