I was told by Tom at OPM that I needed a ECU out of a 90 or 91 civic Si.

I need to know what numbers & letters to look for, I'm looking on e-bay for one.

Thanks for any help.

 

https://honda-tech.com/zerosearch

 

I have done a Search, can not find the info I need.

 

It should be stamped in a blue ink one the side of the ECU by the Serial Number.

You need a 90+, but some 89s work too(Trust me, mine is I pulled it myself). But I wouldn't take my chances unless the ECU was in my hand.

Just look for external ROM, If you are leary of the seller, ask for more pics with the top cover off.

 

PM6

 

Thanks I think the part # is 37820-PM6-A09 is this what I'm looking for?

 

I got one on e-bay for $50.00

Thanks Mike Sr.