[Integraholic]

Ok, I recently had a VAFC installed on my GS-R and now my VTEC engages while its in neutral. I was wondering if this happens to all of them, or its just an isolated incident. It throws a CEL at the strip unless I set VTEC over my launching RPM. I'm pretty sure this is because the ECU is seeing the VTEC engage at neutral. Thanks for the help.

 

[SurferX]

The V-AFC overrides the ECU for the most part which is why it engages VTEC in neutral when it's not supposed to. Check the CEL code, you may have the V-AFC set more rich/lean than the ECU will allow you to.

 

[Integraholic]

The thing is, it only set it off when VTEC was engaged in neutral. I havent messed with the fuel mixture yet. I've cleared the code and it only came on when I tried to launch in VTEC at the track.

 

[GSRBlackout]

why do you want to launch in vtec? did you change any of the settings BESIDES a/f ?

 

[MichaelDelaney]

did you hook up the vtm wire to the 31 pin?