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B18CR rywire harness to OBD0-OBD1

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Old Aug 22, 2010 | 09:06 AM
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Default B18CR rywire harness to OBD0-OBD1

1988 CRX Si

I was running the stock B18CR ECU with a Rywire harness and OBD0-OBD2A adapter. I had to hooK up Yellow,Green,Red and Black wires for the VTEC from the harness to the ECU.

I went OBD1, there is a pigtail coming off the OBD0-OBD1 haness that has a yellow,green, 2 red wires, 3 black wires and some others. I figured I would just color match the wires but with there being 2 red and 3 black I am confused.

Can anyone lead me i the right direction?

Thanks,
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Old Aug 22, 2010 | 03:45 PM
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Default Re: B18CR rywire harness to OBD0-OBD1

rywire's website should have instructions for the colors/pigtails
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Old Aug 22, 2010 | 05:58 PM
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Default Re: B18CR rywire harness to OBD0-OBD1

My problem is that the JDM engines do not have a VTPS. I was told to splice D6 into A4 and then run A4 to the VTEC solenoid.

I also found were people said to pin out from C10 to the VTEC solenoid and then ground the VTEC solenoid to the chasis.

Still confused but at least i have stuff to try tomorrow.
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Old Aug 22, 2010 | 06:01 PM
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Default Re: B18CR rywire harness to OBD0-OBD1

Originally Posted by Dark_Teg
My problem is that the JDM engines do not have a VTPS. I was told to splice D6 into A4 and then run A4 to the VTEC solenoid.

I also found were people said to pin out from C10 to the VTEC solenoid and then ground the VTEC solenoid to the chasis.

Still confused but at least i have stuff to try tomorrow.
Jump the VTPS and VTS together and run a single wire to the VTS and your done.
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Old Aug 23, 2010 | 06:07 PM
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From: Odessa, TX, USA
Default Re: B18CR rywire harness to OBD0-OBD1

Originally Posted by mtber
Jump the VTPS and VTS together and run a single wire to the VTS and your done.

I got it working. Thanks for your help.
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