what to do with my Tbird EFI

[broncomitch]

Can't decide what to do with my 93 thunderbird EFI
I am still having problems with it and can't decide if I should bag it and go with a mustang harness from summit and get the mustang parts I need.

Or get a computer tuner to fiddle with the computer setting and such.

Or just keep beating the dead horse and hope I can figure out the problem.

The first two cost about the same but I'm flat broke and trying to get a new truck....

 

[broncomitch]

My EFI thread.

http://classicbroncos.com/forums/showthread.php?t=164897

 

[Viperwolf1]

I think you have some parts matching problems. The T-bird EFI is wired like the 94-95 mustang EFI, not the 86-93 mustang. ECM and harness need to be matched. Look here: http://www.oldfuelinjection.com/5.0Lpinouts.html

 

[Nobody]

Hard to beat a good OEM setup. Love my tbird 5.0L. There isn't really much tuning support for tbird ecm's.

 

[broncomitch]

Everything is 93 Tbird even the ECM
I did put a 95 mustang ECM in it to see if it would run better, runs a little better but it seems to run about the same.

 

[broncomitch]

So should I use the mustang ECM or the Tbird?

There a little different according to the chart but the main problem I have remains.

Edit,
I'm stupid, I was looking at the 93 mustang spec's

 

[Viperwolf1]

So should I use the mustang ECM or the Tbird?

There a little different according to the chart but the main problem I have remains.

Edit,
I'm stupid, I was looking at the 93 mustang spec's

The big compatibility difference between the '94-'95 mustang and the '93 t-bird ECM is going to the MAF and possibly injector size. Nothing else is significant.

 

[broncomitch]

Ill throw the Tbird ECM in then.

Still back to square one.

Just don't know what it could be...maybe the O2 sensors or exhaust leaking past the donuts? There tweaked a little bit and think air is leaking past the donuts..

I just don't know what else it could be...