Ecm?

[turbov6joe]

Are the 84-85 and 86-87 ECM's interchangeable? Can a person use a chip from an 84 in an 87 ECM?

 

[dennisL]

In a word ... No

 

[fmster]

Are the 84-85 and 86-87 ECM's interchangeable? Can a person use a chip from an 84 in an 87 ECM?

YOU can use the 86/87 ECM on a 84/85 car But the chip is not interchangeable only the calpak(the small chip) can be used,from 84/85 ECM to 86/87ECM.That's
one of the mods the hotair guys do.:smile: