How to identify mass air computer?

R

rock88gt

New Member

Sep 19, 2004

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North Carolina

Oct 16, 2004

#1

• Oct 16, 2004

• #1

I bought a 88gt with mass air conversion and the other day after doing a tune-up and adjusting the fuel pressure I reset the computer by unhooking the neg batt cable(is this right?) Ever since that the car dies on the first try and on the second I have to give her a little gas and than its fine. Someone suggested putting a newer ecu in and I just wanted to know if I can tell by looking at it or a part # if it still has the stock sd one in it. Sorry for the long thread and thanks.

 

5LugFoxFanatic

LOVE AND PEACE!

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May 5, 2002

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Arctic Tundra Hell, Twin Cites, Minnesota, USA

Oct 16, 2004

#2

• Oct 16, 2004

• #2

All manual transmission cars have the A9L computer, with the exception of the 93 Cobra I think. Automatics have the A9P Computer. The A9P will work with a 5 speed, but the A9L must be used only with a 5 speed. I heard the A9P has a more aggressive fuel curve but I have talked with a few people that have 5 speeds with the A9P, and have noticed no difference. I doubt it is the computer going out. Check the plugs, cap, rotor, wires etc before you drop a chunk of change on a CPU.

 

U

usmc88gt

New Member

Oct 4, 2004

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Oct 16, 2004

#3

• Oct 16, 2004

• #3

I just replaced the cap rotor plugs had fuel injectors cleaned. I have a msd 6al ignition and dynamod on the dist. could it be the iac valve?

 

281pony

Active Member

Aug 31, 2003

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Oly, WA

Oct 16, 2004

#4

• Oct 16, 2004

• #4

if you did a conversion or one was done, you could have gotten another computer also.

there is an a9s or something like that ford produces now that are the same. what does yours say? i can see what my old sd comp says if you have something different still.

 

U

usmc88gt

New Member

Oct 4, 2004

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Oct 16, 2004

#5

• Oct 16, 2004

• #5

If I get a chance I'll check it today and let you know. Thanks.

 

NYC LSC

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Feb 16, 2001

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Staten Island, NYC

Oct 16, 2004

#6

• Oct 16, 2004

• #6

This should help you decode it..

http://fordfuelinjection.com/catchcodes.html

 

J

JB66

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Aug 21, 2004

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New York

Oct 16, 2004

#7

• Oct 16, 2004

• #7

The tags on the ECU's have SD for speed density or MAF for mass air on them under the part that reads "EEC-IV". It will also read EFI or SFI before the SD or MAF.

 

U

usmc88gt

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Oct 4, 2004

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Oct 17, 2004

#8

• Oct 17, 2004

• #8

thanks guys and thanks nyc for the helpful link

 

NYC LSC

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Feb 16, 2001

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Staten Island, NYC

Oct 17, 2004

#9

• Oct 17, 2004

• #9

No problem, man. Hope it helps and good luck.

 

Mustang5L5

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Feb 18, 2001

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Oct 17, 2004

#10

• Oct 17, 2004

• #10

Check the compouter for codes