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3wire IACV QUESTION![SEARCHED] OBD2b ECU PINOUT? HELP ASAP PLZ

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Old 08-09-2011, 05:17 PM
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Default 3wire IACV QUESTION![SEARCHED] OBD2b ECU PINOUT? HELP ASAP PLZ

I want to rewire my 3 wire IACV direct... *not on the factory harness* on a seperate homemade harness..... i found this a 3wire to 2wire iacv fix
https://honda-tech.com/forums/honda-civic-del-sol-1992-2000-1/%5Bfaq%5D-96-00-auto-manual-swap-full-detail-44pics-1337459/
But i want to know where to plug in all 3 wires .I know the b15 orange one is the ground. B6 blk/blue is the positive. where does the 3rd wire on the IACV go? this wire is yellow w/blk stripe









thanks...please no negativity
Old 08-09-2011, 05:49 PM
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Default Re: 3wire IACV QUESTION![SEARCHED] OBD2b ECU PINOUT? HELP ASAP PLZ

It's IGP, ignition power by the main relay
Old 08-09-2011, 06:09 PM
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Default Re: 3wire IACV QUESTION![SEARCHED] OBD2b ECU PINOUT? HELP ASAP PLZ

thanks parts hero... Would i be able to plug in my homemade harness yellow/blk to B20? which is empty??

or do i just disconnect IGP1? and plug in my harness there?? if so which IGP?1 or 2?
Old 08-09-2011, 06:13 PM
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Default Re: 3wire IACV QUESTION![SEARCHED] OBD2b ECU PINOUT? HELP ASAP PLZ

If you are going to be using the 3 wire IACV you will want to tie this into a switch 12V pin location.
Old 08-09-2011, 06:26 PM
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Default Re: 3wire IACV QUESTION![SEARCHED] OBD2b ECU PINOUT? HELP ASAP PLZ

Originally Posted by HondaPartsHero
I believe B20 is a ground. Most wiring harnesses have shared grounds and shared 12v power sources. You can use either B1 or B9. You'll need to splice into one of these not replace it because it is shared by other systems/sensors.
.

For future reference for anyone who wants to know if they can put it in b20
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