Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

Rewire CPU ODBI to ODBII

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Old Mar 17, 2021 | 01:24 PM
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Mercadanteus's Avatar
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Default Rewire CPU ODBI to ODBII

Hello, we installed a 96 engine to a 95 Honda CIvic, the differeces is the new engine is ODBII and Vtec, it uses now a chipped 95 CPU but I am electrician and I want to install a 96 CPU to use its diagnostic capacities. There is some diagram that helps me doing the rewiring correcty? Thanks very much for your help
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Old Mar 17, 2021 | 02:48 PM
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Default Re: Rewire CPU ODBI to ODBII

IMO your best bet is to get the Helms(factory manual) electrical book for the 95 and one for the 96 and go from there. They can be found on ebay best price is around 20-25 each plus shipping of course some ask outrageous prices,
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Old Mar 17, 2021 | 09:41 PM
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Default Re: Rewire CPU ODBI to ODBII

I don't think you realize the depth of what must be done to make this conversion. The ECU plugs are the easy part: What about the fuel tank pressure sensor, charcoal cannister shut valve, and secondary O2 sensor just to name a few ? Without installing these, you will ALWAYS be running around with a "Check Engine" light on.
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