Can I use a ecu that has the last three digits different then the stock one.

Igofar

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I COME AS A SPEAKER OF AUTHORITY: The L01 is the only ECU that will work on the 03/04. Only on the <2005 can you interchange the L01 or 38770-mcs-a31. The R21 is COMPLETELY DIFFERENT starting in 2008 [I have pics]/
That’s my boy :rofl1:
 

aniwack

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Good to know. I wasn't convinced back in 2021 but kept my mouth shut because I had never tried swapping them.

Greater numbers of people will be looking for fewer numbers of remaining ECM's. You might consider going back to that post and correcting it for the benefit of others who might find it while searching for interchangeability information.
Thanks for the link. It disappeared into the archive of history!!
 
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