Skip to main content ↑ ↓
Topic: H.O. issues (Read 2875 times) previous topic - next topic

H.O. issues

Reply #15 –
Quote from: slicksport88
:rollin:  Man do I know what that's like!


ditto here stupid thing

H.O. issues

Reply #16 –
Quote
One last thought, I assume you have a vaccum line on the MAP??? If it's Mass Air it will run about the same(maybe better) without the vaccum, if it goes pig rich then it is a S/D EEC...

Well i just went and disconnected the vacuum line to the Map sensor and the idle smoothed right out and it runs much smoother while driving  than it does with the line hooked up. The exhaust didnt smell rich or blow black smoke. So how can i be sure this is a Mass Air EEC and not a S/D EEC? Does this test prove it is a Mass Air EEC?  It looks like i might be getting a MAF sensor and the harness in the near future. Thanks again for the help

H.O. issues

Reply #17 –
If it idles good without vaccum on the MAP(actually it's a BP in a MA setup) and without burning your eyes or blowing black smoke, its definatly a Mass Air EEC(or one really screwed up SD computer)

Ya done got lucky ...
 

H.O. issues

Reply #18 –
Well I got the information off the sticker on the EEC and this is what it says:
EEC-IV SFI-MA12A F3ZF-12A650-EA 61SM12AF09 5686 -2 3D20
And the D3D in bold.

Based on what you are saying the car did idle better and wasnt blowing any black smoke or smelling rich. Looking on cool cats it does seem like this is a Mass air EEC if i am interpreting the numbers right. So now all i have to do is get the Mass Air stuff. Thanks for all the help.

H.O. issues

Reply #19 –
Quote from: 88sportcoupe
Well I got the information off the sticker on the EEC and this is what it says:
EEC-IV SFI-MA12A F3ZF-12A650-EA 61SM12AF09 5686 -2 3D20
And the D3D in bold.



The F3 portion of the pt# indicates its a '93... I'm 99% sure the SFI-MA12 indicates its Mass Air(the same is on my MA EECs)... 3D20 is a actual build date which is Apr 20 '93.

With it being a '93 Mustang EEC it HAS to be Mass Air...

Glad I could help... we've both learned something...

H.O. issues

Reply #20 –
To add a little more to this... Here is some info from Ford Fuel Injection site...

D3D1 5.0 89-93 Mustang MAF / Manual (see note 1)

Some of the EECs apparently got a tweek in their programming and had a number added to the code...

For instance they also list a C3W and a C3W1(which I have). Why they really don't have any info on the D3D I dunno..:dunno:

Now I'll really muddy the water... Likely the engine will run stronger on a '87-'88 SD Stang EEC than it will on the MA using the stock MAF(this was proven 17 years ago when the Stang rags, Super Ford, etc couldn't get as fast times out of a '89 as they did '87-'88s. Plus I tried MA on a '86 with the same results). If you don't plan on mods it may be the way to go. But then the MA setup will likely get a little better gas milage..