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1993 civic D15B7 to D15Z1 swap

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Old Dec 4, 2025 | 07:35 PM
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Icon5 1993 civic D15B7 to D15Z1 swap

Hey yall,

Just finished the build on my d15z1 engine and trans and threw it into my 93 dx chassis. I need some help with the wiring and I’m wondering if someone with experience doing that can let me know what needs to be wired into the P07 to get this d15z1 to run. I’ve heard it needs the wide band O2 and Vtec wiring but I don’t know if egr is necessary yet. I can’t source the wiring for a P07 that runs from the ecu to the strut towers. (That would make my life so easy if anyone has those I’ll buy em!) I’m just going to modify the d15b7 harness to work with my d15z1 harness.

any tips, advice, chastisement, jokes are appreciated here.

thanks!
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Old Dec 4, 2025 | 07:38 PM
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Default Re: 1993 civic D15B7 to D15Z1 swap

For clarity: I have the b7 ecu to strut tower wiring that I was planning on modifying if nobody has the vx ecu to strut tower wiring laying around.

pin diagrams, videos, anything helps.

thanks
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