can anyone tellme the difference between these 2 ECU's?

[F 150Cobra]

the original that came with this truck is this one than as a few of you know.. i had the running fuel pump problem..
E0D 5.8 Bronco, F-x50 E-x50 SD-Bank / E4OD


then i got this 2nd hand one with much more power.. and better shifts
C9S1 5.8 Bronco, F-x50 E-x50 SD-Bank / E4OD


the applications are the same.. but they are completly different!! the way they work and perform and fisicly.. inside and outside..

LEFT C9S1 RIGHT E0D

C9S1

E0D

then the 2nd hand one.. also went bad ( running fuel pump problem again ).. i was so pisssed that i opend the stock ECU from the truck E0D and try to fix it .. saw 3 burnd capacitors replace them computer is oke.. exept the problems it always had.. rough idle.. high idle when into gear.. overdrive button goes on and off when i press the brake ..

i want to fix the 9CS1 one to use it in the truck.. im gonna fix it today... when the truck has this computer in . it runs like a new truck.. smoooothhh idle.. impressive power .. crisp shifts at WOT.. ( chirps the tires ) etc etc


but what are the differences between the 2?

 

[jjlogue3]

Sorry I am late with this response but when I had my 90 f150 I hada problem with my fuel pump running constantly and it was just a stuck relay under the hood.

 

[F 150Cobra]

been there done that.. thats the first thing i cheked.. thanks tough... but problem is solved.. new ECU..

 

[jjlogue3]

Cool I thought the problem came back after the ECU swap..........I musta missed something........Glad you got it working!