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(again) Vafc, throttle percent (low)(hi)

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Old 12-27-2002, 01:52 AM
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Default (again) Vafc, throttle percent (low)(hi)

Hey well i have worked out lots of bugs in my injector swap. but i need to know now is ...for the LOW and HI percents for Throttle.. should i run 5% and 45%.. i was told i should run these numbers.. after i was told to run 98% 99%, low and hi. please help me.. do u think that 5% and 45% will help or what should i do now
Old 12-27-2002, 05:58 AM
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Default Re: (again) Vafc, throttle percent (First Gen Man)

With the Hack, it doesn't matter what Low/High throttle you set 1/2% or 98/99%, the maps are the same on both sides. I have mine at 98/99%- running fine to 11psi-NO CEL's
Old 12-27-2002, 12:33 PM
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Default Re: (again) Vafc, throttle percent (integracon)

im NOT running the hack...
and that is why my car is messed up.. i get it to pull .. but it seems like it is too rich.. but i dont get it how i can (+) the 1k fuel .. and it will idle better
Old 12-27-2002, 01:11 PM
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Default Re: (again) Vafc, throttle percent (First Gen Man)

geeze, familiar location torrance/lomita...anyways...go to a local dyno, i'm not sure where there is one of those anymore around those parts...but start asking the shops...BTW which shops are in the area....i'll be going back home to SO cal, and intrested what is going on around those parts.
Old 12-27-2002, 01:48 PM
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Default Re: (again) Vafc, throttle percent (First Gen Man)

Before the hack I think mine was 5% and 65%. What size injectors?
Old 12-27-2002, 01:54 PM
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Default Re: (again) Vafc, throttle percent (First Gen Man)

What size injectors do you have?
Old 12-27-2002, 03:22 PM
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Default Re: (again) Vafc, throttle percent (integracon)

im running dsm 390cc with a crane cam
Old 12-27-2002, 04:45 PM
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Default Re: (again) Vafc, throttle percent (First Gen Man)

If your using the AFC to run bigger injectors, you are doing the hack... That IS the hack. It just so happens the hack also allows you to run boost. About %'s to set throttle position, it doesn't matter. I heard that the honda ECU switches from closed to open loop @ 70% so i put mine @ 70/71% so i could tune differently for open loop if I wanted to. Works fine, but I played with a whole lot of settings and it didn't matter which I chose. Hope this helps
Old 12-27-2002, 05:16 PM
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Default Re: (again) Vafc, throttle percent (Johnyquest)

Should i USE the missing link ..?... and what fuel pressure..
Old 12-27-2002, 05:21 PM
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Default Re: (again) Vafc, throttle percent (First Gen Man)

I set it up with nothing special done to the VAFC just install it the way it suppose too. Set everything down to -40% and had throttle position at 98%-99%. No missing link. It works great with A/F at 12:1
Old 12-27-2002, 05:52 PM
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Default Re: (again) Vafc, throttle percent (First Gen Man)

Should i USE the missing link ..?... and what fuel pressure..
No, that defeats the whole purpose. The Missing Link prevents your MAP/ECU from reading the boost- with the larger injectors combined with the decreased voltage via your -40% AFC setting, allows the ECU to control the Fuel upto 11psi.

HOWEVER, since you are only using 390's not sure if the voltage will be decreased enough for you to do it. Try it and see- it may allow you 6psi w/o a CEL.

Those 390's might be too BIG to run the Missing Link and too SMALL to run without it...


[Modified by integracon, 6:54 PM 12/27/2002]
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