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Honda Civic (2001 - 2005) Coupe / Sedan / Hybrid (Includes Acura EL)

A1 to A2 swap

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Old Nov 2, 2022 | 10:48 AM
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Default A1 to A2 swap
I currently have a d17a1 “non vtec” I have a d17a2 with Vtec will I need more than the a2 computer for it to run? Will I need the a2 harness???? Plz help
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Old Nov 2, 2022 | 09:21 PM
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Default Re: A1 to A2 swap
No, you do not have to change engine harnesses... but you will have to wire up the VTEC solenoid and VTEC pressure switch and connect those wires to the proper locations at the ECU.
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Old Nov 15, 2022 | 09:53 PM
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Default Re: A1 to A2 swap
Would it be easier just to get the harness
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Old Nov 16, 2022 | 09:10 PM
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Default Re: A1 to A2 swap
It could be.
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