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C3W to A9L swap help

  • Thread starter Thread starter Mustang-Mike
  • Start date Start date Jun 27, 2010
M

Mustang-Mike

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Jun 23, 2010
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Texas
Jun 27, 2010
#1
  • Jun 27, 2010
  • #1
Ok i have a question my car use to be an automatic so it still has the c3w computer in it. i want to go with a a9l since it is 5spd now so what i want to know is this strickly plug and play or would i have to move pins to different locations. i just remember doing a mass air conversion on my last car and had to move pins to different locations in the harness, i'm just wanting to confirm that this is just a plug it in and go thing before i do it and have a fireworks show before the 4th of july.
 

jrichker

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Jun 28, 2010
#2
  • Jun 28, 2010
  • #2
Save your knuckles and sweat. The C3W computer will work just as good as the A9L. Both have exactly the same pinout and functions.
 

Mustang5L5

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Jun 28, 2010
#3
  • Jun 28, 2010
  • #3
You would need to change O2 harnesses or repin the EEC as there are differences with Auto and 5-spd here. Using the 5-spd EEC with an AOD O2 harness could damage the EEC.

No need to change though.
 
M

Mustang-Mike

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Jun 23, 2010
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Jun 28, 2010
#4
  • Jun 28, 2010
  • #4
Thanks guys i went ahead and installed it yesterday anyway with no issues, and actually the car doesn't stall out on me anymore since i did the install. as far as the o2 sensors i found out yesterday that they are not even connected so i'm not sure if it will still damage the EEC or not but i will get all this stuff together.
 
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