ECM question

[cymmij]

I purchased a new used ECM to do a mass air upgrade but I would like to try to start my new motor and I think my old ECM is no good it was a speed density ECM can I just plug in the new one without changing the wiring harness or will that damage the ECM?

 

[Mustang5L5]

You'd be lucky if the car even ran.


Search around for a used SD computer. A lot of guys go MA so i bet plenty of guys have an SD comp collecting dust somewhere

 

[cymmij]

You'd be lucky if the car even ran.


Search around for a used SD computer. A lot of guys go MA so i bet plenty of guys have an SD comp collecting dust somewhere

Thanks thats pretty much what i though