S2000 Under The Hood S2000 Technical and Mechanical discussions.

CEL code p2647

Old Feb 22, 2009 | 05:07 AM
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Default CEL code p2647

Just installed a AFC NEO with pnp harness into my ap2. I have all the settings for my car correct i think but vtec control when i start the car i get p2647 vtec oil pressure switch. I was looking around the forums it seems like the vtec is trying to engage at low rpm. Does anyone have the correct settings for the afc neo? I just need to have it running without the CEL for when i take it to the tuner. any help is appreciated thanks
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Old Feb 22, 2009 | 10:19 AM
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anyone?
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Old Feb 22, 2009 | 10:36 AM
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vafc?

https://www.s2ki.com/forums/index.php?showtopic=51969
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Old Feb 22, 2009 | 11:45 AM
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I already read that but I'm getting a CEL, anyone know why?
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Old Feb 22, 2009 | 12:57 PM
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Might try setting the V/T Control to Off. Reset the ECU and see if the CEL comes back. If it does, you may have a wiring harness issue. Make sure the you received the correct harness.
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Old Feb 22, 2009 | 08:37 PM
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If you had your oil changed at about the same time, you might be throwing it too. Just keep driving and then reset the CEL. If it comes back:

Check the screen on the VTEC solenoid on the side of the head. Takes about 15 minutes, a 10mm hex.

Good luck!

oh yeah, might leak some oil in the process...
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Old Feb 23, 2009 | 08:31 AM
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thanks for the help guys! imma recheck and then recheck the wiring and ill check the vtec noid.

does anyone have the setup settings for the neo? I want to double check everything is correct too...
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Old Feb 23, 2009 | 10:12 AM
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Originally Posted by freshs2k,Feb 23 2009, 09:31 AM
thanks for the help guys! imma recheck and then recheck the wiring and ill check the vtec noid.

does anyone have the setup settings for the neo? I want to double check everything is correct too...
Just disconnect it, drive to the tuner, then reconnect it.
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Old Feb 23, 2009 | 10:51 AM
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when I pull the afc out the cel goes away so its definately the neo hmmmm.....
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Old Feb 23, 2009 | 07:15 PM
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Isn't there a VAFC settings post in the DIY in FI forum? I thought I saw it there...
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