Qs about hondata and VAFC
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Honda-Tech Member
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From: freeways of, slow cal, usa
Qs about hondata and VAFC
Does anyone know if it is ok to use hondata on a P72 with a VAFC v.2 hooked up? Can the VAFC be zeroed out then the car tuned with hondata? The reason I ask is because I have an appointment to get hondata installed this weekend but I am currently using a vafc and don't have the opportunity to disconnect it. Anyone run their car with a vafc installed and hondata? thanks
Honda-Tech Member
Joined: Jan 2002
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From: baltimore, md, usa
Re: Qs about hondata and VAFC (lopey)
how did you have the vafc installed, did you have it soldered in, or did you use a harness at the ecu
either way theres a plug in the vafc cord that runs to the ecu, just unplug the vafc and install your hondata then at a later date completly uninstall the vafc wireing
either way theres a plug in the vafc cord that runs to the ecu, just unplug the vafc and install your hondata then at a later date completly uninstall the vafc wireing
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From: freeways of, slow cal, usa
Re: Qs about hondata and VAFC (01-0720)
Do you think the left over harness from the VAFC would mess with the wiring's operation? I guess I'm paranoid but I wonder if there are any issues with too much resistance from the extra wiring or something. I won't be able to remove the wiring any time soon because of my schedule, and I need to get the hondata in because my car is pinging.
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Re: Qs about hondata and VAFC (01-0720)
... well that and the manifold pressure/vacuum wire which was probably cut during the VAFC installation (not to mention probably a wire or two having to do with timing with version 2).
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From: VA, USA
Re: Qs about hondata and VAFC (lopey)
I run a Hondata S100 and still have a VAFC hooked up. Just zero out the VAFC and it's fine. You have to use the VAFC to set the VTEC switchover point however, as it overides the ECU.
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Joined: Feb 2003
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From: Maryland
Re: Qs about hondata and VAFC (lopey)
Do not follow the instructions of just "unplugging" the vafc, There is an in and an out wire for your map sensor, going in and out of the vafc, if it is dissconnected you will have no MAP reading. Just zero out all your settings and it will be dandy, it will not do any harm being installed with all setting zeroed.
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