Hey guys. Ive got a 92 hatch with a b18b1. So I was wanting to know if the P28-A02 ECU in there right now is the right one!? Thanks guy..

 

im running the P28-A51 with hondata s300 in my 93 hatch with a boosted B16A, but had the A02 and it worked fine

 

That didn't actually answer his/her question. P28 is for SOHC VTEC but it can be used on different motors with or without modification but may trigger a check engine light. The correct ECU depends on your engine's specific year and/or OBD configuration but should be P74/P75. In addition an OBD1 PR4 should work just the same if the wiring is setup for OBD1. If you need more clarification check the FAQ or use your favorite search engine.