IACV question...
11-14-2006, 12:04 PM
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IACV question...
I need to convert my 3-wire IACV (2000 civic cx, d16y7) to a 2-wire IACV to run an obd1 ecu. Can I just buy one of the 2-wire IACV plugs that go for around $10? Will this work?
11-14-2006, 12:09 PM
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Re: IACV question... (Tuesdaynightfever)
are you chaning the manifold or are you using the cx manifold..cause the cx manifold had the iac built on the manifold and the ex manifold has a whole different iacv..ex 2 wire cx 3 wire
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11-14-2006, 08:19 PM
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Re: (Tuesdaynightfever)
I would think this would be an easy question for the honda-tech gods...
I am converting my bone stock 2000 civic Cx (d16y7) to obd1. I need a 2 wire IACV instead of the 3 wire IACV I currently have. Would switching the plug to a 2 wire plug work or will I need to swap out my mani?
Thanks guys
I am converting my bone stock 2000 civic Cx (d16y7) to obd1. I need a 2 wire IACV instead of the 3 wire IACV I currently have. Would switching the plug to a 2 wire plug work or will I need to swap out my mani?
Thanks guys
11-14-2006, 08:25 PM
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As long as I dont have to take out any more Metal Gears
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Re: IACV question... (Tuesdaynightfever)
what would be the point to change it to 2 wire when the iacv is still going to be a 3 wire connection? U will need a 2 wire iacv, and that wont fit on the cx manifold. So to do this conversion, u will need to get something like a y8 manifold and iacv to make it work. u should be able to re-use the cx throttle body with a y8 manifold. Why are u changing to obd 1 anyways?
11-14-2006, 08:30 PM
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Re: IACV question... (rukawa1one)
I am changing to obd1 for tuning purposes. I just want to figure out EVERYTHING I need to do before actually turboing my car and spending more money than I need to. Thanks for the answer Anyone else have a suggestion? Is changing my intake mani the only way to be able to use an obd1 ecu? I've been hearing mixed answer..
Anyone else have a suggestion? Is changing my intake mani the only way to be able to use an obd1 ecu? I've been hearing mixed answer..
11-14-2006, 08:43 PM
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Re: (jz98ctr)
I was told I need an obd2 -> obd1 conversion harness, an obd1 ecu, and a y8 intake mani with the IACV...I keep hearing different things 
Thanks for the responses though
Thanks for the responses though
11-15-2006, 08:35 AM
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Re: (Tuesdaynightfever)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tuesdaynightfever »</TD></TR><TR><TD CLASS="quote">I was told I need an obd2 -> obd1 conversion harness, an obd1 ecu, and a y8 intake mani with the IACV...I keep hearing different things
Thanks for the responses though </TD></TR></TABLE>
not sure on the IM but if you are to get a jumper harness i think you should be using the obd2B to obd1
obd2A 96-98
obd2B 99-00
Thanks for the responses though
</TD></TR></TABLE>not sure on the IM but if you are to get a jumper harness i think you should be using the obd2B to obd1
obd2A 96-98
obd2B 99-00
11-17-2006, 12:28 PM
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Re: (jz98ctr)
u dont need to have a 2 wire iacv to run an obd1 ecu ..just as long as ur using a non vtec ecu on your non vtec motor you jumper harness should be plug and play
11-17-2006, 02:44 PM
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The 3 wire AIC has a position sensor and can partially open, the 2 wire sensor is open or closed (nothing in between).
You can use an OBD1 ecu that is 2 wire control (just cut the orange wire), BUT the idle will go very high when IAC is commanded open.
I have installed several complete OBD2 single cam motors into ef/eg customer cars and left the 3 wire IAC.
You can remove the throttle body and the port that supplies air to the IAC can be welded shut (i.e. plugged) and redrilled to a much smaller orfice size. By doing this you can tune the amount of air that the IAC lets in to be similiar to that of a standard 2 wire IAC manifold.
And this way you can do it for FREE.....then you can send me the $$$$ you would have paid for the new manifold and IAC you were gonna buy. i gotta eat......
You can use an OBD1 ecu that is 2 wire control (just cut the orange wire), BUT the idle will go very high when IAC is commanded open.
I have installed several complete OBD2 single cam motors into ef/eg customer cars and left the 3 wire IAC.
You can remove the throttle body and the port that supplies air to the IAC can be welded shut (i.e. plugged) and redrilled to a much smaller orfice size. By doing this you can tune the amount of air that the IAC lets in to be similiar to that of a standard 2 wire IAC manifold.
And this way you can do it for FREE.....then you can send me the $$$$ you would have paid for the new manifold and IAC you were gonna buy. i gotta eat......
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