the number on it is F2MF-12A650-RA
but for some reason on the other side of the connector it says E9AF 14A624 AA.
SO I DONT KNOW IF ITS a recal ecu or what but it came out of a 1990 5.o ho tbird i want to know if i can use it for mass air. the car had mass air on it

 

no

 

do u know what the differances are adder? im having issues with my idle sounding like i have a cam running the a9l ecu in my 86 with my egr bloced off and smog pump blocked of and not connected. im stumped, i cant find a vac leak

 

you dont still have the map sensor connected... do you?

 

^^^^^Nice answer.

 

undid the vac line plugged it off left the wires to the map hooked up as told to do to turn it to a bap

so how come a 5.0 ho t bird motor in a 90 is differant? is it just sensors and stuff?

 

F2MF = a '92 EEC and '91-'93 T-Bird EECs do not use a BP sensor. It was the first generation of the CBAZA or SN95 EEC type..... or not GUFB MAF (A9x) compatible.

 

so what is it doing in a all stock 90 5.0 t bird? the back says e9af 14a624 aa which is more consistent with a 90 bird. im wondering if this bird was upgraded to the newer system? cus the f2mf is actuall a white sticker label

 

so this ecu would work on a 5.0 if it had everything switched over to whats on a sn95 or 91-93 t bird? this makes no sense cus a 1990 t bird is supposed to have the right ecu and if the door tag says 7/90 its a 90

 

A9L = '89-'93 Mustang/Manual
X2P = '91-'93 T-Bird/Auto

X2P is a load based strategy EEC with datastream capabilities, or the precursor of the CBAZA setup used for SN95's, it does not use a BP sensor + its pinout is different to the A9x GUFB setups. Make a comparison between both types using the table at http://fordfuelinjection.com/5.0Lpinouts.html .