I bought the car and I am discovering things as I go, the owner who did all the modifying and tuning is no where to be found. Anyway, it is a 1988 CRX HF with a B18C5 shortblock, Skunk2 cams and intake manifold, I/H/E, ITR valvetrain, B16 head, J1 JDM tranny. The car came with a dyno graph, which I hope means it was professionally tuned somewhat, but it feels like the entire powerband was not tuned. I have been driving it and it feels great at WOT, but the midrange bogs and it starts pretty bad. So I want to tune it a little, and am trying to figure out what my options are. I don't know what OBD it is, I'd like to think OBD1 but I'm not sure. Here is what I am discovering...


I know he got at least the tranny from Japan, maybe the ECU is from Japan as well. It says "B16A", "CP", "M/T", "SOLD", and "good" to clarify. Any idea what "CP" might mean?


Here are the guts of the ECU, I don't see anything that sticks out to me as a piggyback tuning device, does anyone see anything interesting?


Here are all the wires in the area, 4 of them, I don't know what any of them do, but it might help in determining what I've got.

So what do I have and what are my options for tuning? I have tuned standalone's before, I just need to know what my options are.

 

judging by the glass hole in the ecu cover for the cel, i'm guessing its obd0

 

That ecu is chipped if you look were it says at29c256 in the bottom left of your ecu that is called a rom. that ecu is a pr3 its obd-0 i advise you to learn what obd means before you go trying to tune wait scratch that take it to some one that tunes obd-0 and uses BRE. and those wires you see ask your self this does my heater or controls work? if not those are your blower motor wires. hopefully i helped and wasnt much of a dick.

 

The heater has been taken out, not my doing. So knowing that it is OBD0, should I try to convert it to OBD1 with a harness so that I can do Hondata, etc? Where might I find an OBD0 guru to give me a good all-around tune in this area?

 

well, seems it was chipped to run the b18c; no piggyback.
I would personally swap to odb1 just for the possibilities and being a better system overall.
youll need the dizzy, ecu conversion harness, dizzy conversion stuff and ecu

 

If I get all that, would I still have to get it professionally tuned? How is that different than just getting the OBD-0 tuned? Or would I get a wideband and do it myself? Or can I download base setups to start from? Thanks, I'm just trying to strategize my researching!