1991 240sx: What does the big 24 or 28 on ecu's mean?

ONLY for ADVANCED technical discussion about the 240sx!
vancouverbc
Posts: 3197
Joined: Thu Oct 30, 2003 1:30 am
Car: 1991 240sx

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ECU-serial numbers

Figured this out. The 28 is for 92-94. Jim wolf says the 28 works on 1991. The 24 is for 1991 exclusively.

see tutorial on this subject:

zerothread/312528




Modified by vancouverbc at 7:27 PM 2/9/2008


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