I'm looking for an OBD I P72 ECU for a 5 speed 1991 Honda Accord with an H22A swap. And I'm also wondering if it is a direct fit to a wiring harness if i originally had a P13. If anyone has a P13 as well, it would be much appreciated.

 

yes it will direct fit. But I'm 99% sure that if anyone DOSE have one it's being used. Here is a link for fair priced chipped p72 ecus. You know you HAVE to get a tune a p72 will NOT work with the factory tune. SInce the p72 ecu is a gsr factory ecu.

hamotorsports.com

 

I just figured out from a buddy of mine that the P28 will work with it too. Is this true?

 

yes it will work but it won't run your secondary runners in your intake manifold. You can hook it up by vac source BUT it won’t engage at the right RPM. If you do want to use a p28 you could do the butterfly delete and add the extra spacer. Search for it and you will see what I mean.