Mass air ?

[slickum01]

Can someone identify if these are mass air computers, 5.0 HO ?

Any one know of a list of the computer codes?

[black50]

I think the SD on both signifies speed density

SFI - Sequential fuel injection SD - Speed density system

The mass air computers will have a MA after the SFI

[71chevellejohn]

If I remember correctly the second digit of the part number(in this case e7sf-xxxxxx-xxx) indicates the last digit of the year it was made. If that is correct, then both of these would be from 1987 and Speed density. Of course the part could have been made in 87 for use in an 88.


Googling finds that the -C1A is a Speed density, Automatic

[talisman]

A9L is what you want.