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obd2 to obd1 question

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Old 11-18-2010, 12:58 PM
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Icon2 obd2 to obd1 question

got a question i got a 97 dx civic and i am swapping a obd2 ls swap in it and i am doing a obd2 to obd1 conversion using a p06. do i have to do anything to the wireharness or do i just plug everything up as normal ive heard of people rewireing the dizzy to a obd1 just lmk if you got any info thanks
Old 11-18-2010, 01:21 PM
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Default Re: obd2 to obd1 question

1. You are going to have to wire the 3 wire IACV to 2 wire
http://www.ff-squad.com/tech/wiring/wiring.96-98.jpg

2. Your intake air temperature sensor is square, the LS is round. So you will either rewire the connector to the round style or do this:
http://farm3.static.flickr.com/2144/...c4d3f0c1_b.jpg

3. Extend the primary O2 using an O2 extension harness
Old 11-18-2010, 01:26 PM
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Default Re: obd2 to obd1 question

dne changed the iacv and extended the o2 but ima proable be running a chipped p06 so not really worry bout 02 ill have to check the air intake temp out havent changed it
Old 11-18-2010, 01:29 PM
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Default Re: obd2 to obd1 question

is the air intake temp sensor on the manifold itself
Old 11-18-2010, 01:47 PM
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Default Re: obd2 to obd1 question

On the DX its in the air box



On the LS its on the intake manifold


sensor on 4th runner
Old 11-18-2010, 02:53 PM
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Default Re: obd2 to obd1 question

pk thanks guess ill change it tomm be4 hopefully putting the swap in
Old 11-19-2010, 02:46 PM
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Default Re: obd2 to obd1 question

on the iat will the wire colors on the plug match cause on the dx harness there 2 black plugs i am guessing one goes to iat and one goes to the sensor on top of the ls manifold but idk which one goes to which,
Old 11-19-2010, 02:47 PM
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Default Re: obd2 to obd1 question

i cut the plug of the teg harness that goes to the iac will the colors on it match the dx harness the teg harness is also obd2
Old 04-14-2011, 02:02 PM
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Default Re: obd2 to obd1 question

just dropped a h23a into a 00 accord temp sensor doesn't work also need the pin out for the vss
Old 02-19-2022, 09:29 PM
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Default Re: obd2 to obd1 question

Originally Posted by HondaPartsHero
1. You are going to have to wire the 3 wire IACV to 2 wire
http://www.ff-squad.com/tech/wiring/wiring.96-98.jpg

2. Your intake air temperature sensor is square, the LS is round. So you will either rewire the connector to the round style or do this:
http://farm3.static.flickr.com/2144/...c4d3f0c1_b.jpg

3. Extend the primary O2 using an O2 extension harness
do you have pictures the obd2 IAT pigtail?
Old 02-20-2022, 06:03 AM
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Default Re: obd2 to obd1 question

Originally Posted by ray ray ray ray
do you have pictures the obd2 IAT pigtail?
do you need pics of the front or back?
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