Computer ??


Rightroofing

10+ Year Member

Joined
Apr 21, 2012
Messages
13
Points
1,601
Vehicle Year
1994
Transmission
Manual
Ok I'm looking to replace my EEC but can't find a match to my part number ... The part number ends in ADC and I only find them ending in ADB and stuff like that I was wondering of it was ok to use those ? Help please
 
Ok I'm looking to replace my EEC but can't find a match to my part number ... The part number ends in ADC and I only find them ending in ADB and stuff like that I was wondering of it was ok to use those ? Help please

Can you give the complete part number you need vs. what you are finding? More than likely you're going to be fine - it's just a different calibration.

EDIT: Read this: http://www.therangerstation.com/forums/showthread.php?t=115864
 
Last edited:
It is a different calibration, but I would not put an ADB in place of an ADC. The B is an earlier calibration.
 
dont worry about the part number. theres a 3-4 digit number/letter code printed on the sticker. thats all that matters.
 
It is a different calibration, but I would not put an ADB in place of an ADC. The B is an earlier calibration.

Isn't it just a state calibration for different emissions and altitudes?
 
dont worry about the part number. theres a 3-4 digit number/letter code printed on the sticker. thats all that matters.

I believe this to be true as well. It is with Mustangs....




Ok it's f47f-12a650-ADC

The big one says BAB2

Here are 3 on ebay with both of these designations:

http://www.ebay.com/itm/1994-MAZDA-...Parts_Accessories&hash=item2a1989c635&vxp=mtr

http://www.ebay.com/itm/1994-RANGER...Parts_Accessories&hash=item1e63d61eff&vxp=mtr

http://www.ebay.com/itm/1994-RANGER...Parts_Accessories&hash=item1e6addcf71&vxp=mtr
 
Isn't it just a state calibration for different emissions and altitudes?

No. That's part of it, but not all of it.

Back in the early days of EFI and EEC the only way to update the computer to a newer software version to fix issues caused by calibration was to physically replace the computer. Going to an earlier software revision may have other unintended side effects on performance or fuel economy.
 
So what's the best one to replace it with?
 

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