Okay, there are a few ways to do Hondata on a P28 ECU.
This is what I did:
I bought a P28 ECU locally for $75 and a conversion harness (OBD2b to OBD1) for $75. Then I had the P28 socketed for about $75 by somebody locally.
I ordered Hondata S200b thorugh a local shop for $475 plus a base map of $50 (refundable, if dyno tuned on the smae shop later). I installed everything..... just plug and play. Then got the car dyno tuned for $160.
Or you can do this:
http://www.wiredspeed.com/brands.asp...me=Hondata&Tp=
WiredSpeedlab can give you a deal for everything. A P28 ECU, RC440cc injectors, and Hondata S100/200b. You will
not need a conversion harness becasue they will replace the P28 pinouts to a direct OBD2b match.... vice getting a conversion harness. You can also ask for a base map program. This set-up wil actually cost about the same compared to what I have done. Ricky from that site is awesome. he has different prices and probably cheaper anywhere else. If you decide to get the system from them, call him instead of ordering through the site. You will have a lot more money.... trust me.
you are correct, if you get Hondata, you will not have a need for an AFC and/or missing link. Hondata will prevent map code CEL since Hondata can control a stock map sensor to read boost all the way up to about 11-12 psi boost. If you up the boost later, Hondata will still compensate as long as it is not above 11-12 psi. my suggestion is dyno tune for 10-11 psi, then lower your boost for daily driving purposes. Either way, base map will still compensate for any increase in boost, it's just that it will not be tuned.
Dont worry too much about CEL if you get Hondata, especially after tuning. To be quite honest, all my friends including myself never had a CEL ever since we started using Hondata. This system is just the shiznit for the price....
Later
