97 D16y7 into 99 Civic Ex Wiring Questions Please Help - Honda-Tech - Honda Forum Discussion

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97 D16y7 into 99 Civic Ex Wiring Questions Please Help

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Old 05-17-2018, 07:10 PM
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Default 97 D16y7 into 99 Civic Ex Wiring Questions Please Help

in the next couples of days Iím going to be swapping out the d16y8 from my 99 civic Ex and dropping in a 97 D16y7 I picked up for 175 bucks, I got the full long block, engine harness, ecu, axels.

I already know I will need to use the 99 obd2b harness on the D16y7 and i think a obd2b non-vtec ecu, but my question is do I need to re wire the Iacv or any another sensors or is everything on the harness plug and play. I already know people are gonna say. ďSearchĒ ďgoogleĒ but Iíve tried and only find D16y7 to d16y8.

If someone could please help me out I would honestly really appreciate it and the car is Manual btw if that matters
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Old 05-17-2018, 07:48 PM
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Default Re: 97 D16y7 into 99 Civic Ex Wiring Questions Please Help

y7= 3 wire iacv, y8= 2. google how to change that. ecu is necessary, as will be your distributor from the y8.
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Old 05-17-2018, 08:08 PM
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Default Re: 97 D16y7 into 99 Civic Ex Wiring Questions Please Help

Originally Posted by eghatch9295 View Post
y7= 3 wire iacv, y8= 2. google how to change that. ecu is necessary, as will be your distributor from the y8.
Iíve been trying to google for the best hour but only can find 3 wire to 2 wire, I need 2 wire too 3 wire, would you be able to help me out
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Old 05-17-2018, 11:07 PM
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Default Re: 97 D16y7 into 99 Civic Ex Wiring Questions Please Help

i have done this before, but cant remember exactly what i did. you need to look at the ecu pinout and run the third wire out. https://honda-tech.com/forums/honda-...olved-3117589/
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Old 05-18-2018, 03:45 AM
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Default Re: 97 D16y7 into 99 Civic Ex Wiring Questions Please Help

Originally Posted by eghatch9295 View Post
i have done this before, but cant remember exactly what i did. you need to look at the ecu pinout and run the third wire out. https://honda-tech.com/forums/honda-...olved-3117589/
thatís for obd2a I need for obd2b
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Old 05-18-2018, 03:54 AM
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Default Re: 97 D16y7 into 99 Civic Ex Wiring Questions Please Help

Automatic EX would already be 3-wire. Could get the harnesses from an OBDIIb automatic and plug and play.
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