1992 Honda Civic EXV with 1600cc SOHC VTEC engine and automatic transmission.

Previous stock ECU, now dead, is 37820-P28-C50.

Available, replacement stock ECU, not yet installed, is 37820-P28-C52.

My question: Is the replacement C52 compatible with the previous C50?

 

i believe that determines your automatic vs. manual ecu...since its different then its probably for a 5 speed. if i remember correctly thats what the last 3 letter/numbers mean. so no...it wont be compatible.

 

Slo_Hatch, thanks for your very quick reply.

In the last three digits of the ECU part number:
C = intended for Canadian market
5 = intended for Automatic transmission

The last digit:
0 = Original version, Revision 0
1 = Revision 1
2 = Revision 2
etc, etc

I am unable to establish the differences between Rev. 0 and Rev.2

Can you advise?

 

It will be compatible with your motor. The revisions are just minor changes Honda made to the programming and tables in the ECU.

 

Yep, this is the answer you're looking for.

 

TomO and 94EG8,

Thank you both for the postive response. Will now go ahead and install the replacement ECU.

Robert,
Surrey, BC.