D16Z6racing

Searched here and no luck. I just saw one somewhere and now I can't find it.

I'm looking to see who makes a harness to make a motor go from OBD2 to OBD1. Also, where could I find one? All the motors I've found so far are high mileage. So I may get a newer motor w/ OBD2 to put in my EG that's OBD1.

Sorry for the stupid question, but it's fustrating me, cause I know I just saw one somewhere online. Thanks.

kenji

buster13,

I can make OBD2 to OBD1 harnesses. I have sold quite a few to H-Tech members.

But, I think you are looking for an OBD1 to OBD2 harness to run an OBD2 ECU in your OBD1 EG. Is this assumption correct?

Let me know so I can help you out. If the above assumption is correct you don't need one of my harnesses. A better solution would be to get an OBD1 GS-R ECU and just plug it in. But, if you must use the OBD2 ECU I can make you the OBD1 to OBD2 harness you need.

Either way I would be happy to help you out.

-kenji

Dokta

What exactly is it that you have to do to make an OBDII engine work in an OBDI car? Please explain what needs to be done.

kenji

Give me the year/model engine and year/model car and I will tell you how to make it work.

-kenji

Cramerox

Kenji- are u still making harness? Im looking for a obd2 to obd1 for a p72 1998 integra. Please email me at
Cramerox@aol.com or PM me.

thanks alot for you time.

fOmaNPu

1992 Civic Si with a d16z6 SOHC VTEC wanting to swap in a B16a2 OBD-II from a 2000 Civic Si.

Thanks

shawnhayes

Oooh, oooh, I know, I know. (frantically raising hand jumping up and down).

Swap in. Plug harness in (yes, OBD-II harness).
Get "kenji" spec p28 ECU and plug in.

No ****. IM B18C5-EH2, this is how his ITR motor has worked in a 92-95 Civic.

Shawn

fOmaNPu

Kenji spec p28? Uhmmm... huh?

shawnhayes

It might be "kanji" spec p28, but simply put, it's an OBD-I ECU that IGNORES the knock sensor, and extra OBD-II crap, and treats the engine as if it's an OBD-I VTEC engine, and fuels like a DOHC motor needs.

Simple solution, really, but you lose the knock sensor, and if you have a GSR, secondary runner control.

Shawn

98DC2-ITR

The only problem is the 00 SI harness goes straight to the computer unlike the GSR which unhooks @ the firewall. B18C5-EH2 did an OBD II ITR swap which had the correct harness. He will have to do a harness on that '00 SI swap because of the above.....

Dokta

I have a B20Z2 from a 1999 CR-V, and I'm putting it into a 1993 Civic Si. I want to keep the car OBDI.

shawnhayes

Well sunavabitch. I looked it up in my 96-2000 Civic Helms manual. Ain't that some crap. Think Honda did that on purpose to prevent easy swaps?

Well, Buster13, looks like I misinformed you. Ya gots several options the way I see it:

1. My solution above (hacked p28 OBD-I ECU) with Integra harness that hooks directly to firewall connectors.
2. Convert engine to OBD-I and use OBD-I harness
3. Convert car to OBD-II ECU (I don't even know if this is possible, frankly, but I suspect that it is)

Shawn

98DC2-ITR

If you want to stay obd I on this swap all you need to do is to change the distributor, fuel injectors, and the down pipe out of a 94-95 LS. It should be a direct swap and that stuff is really plentiful. Also you can swap the harness over to a 95 ls. If I were you I would use the OBD II harness (assuming the CRV is like an integra and the harness unplugs @ the firewall. I just can't remember right now) and use an ECU adapter cable. Kenji makes those. I think that I may have cut a few for him through the years.....