AFC reading O2 voltage WITHOUT blue wire mod.......
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From: ME
AFC reading O2 voltage WITHOUT blue wire mod.......
problem---you can only see your O2 voltage under the sensor check menu you can not directly compare to rpm,correction etc.
idea for a solution----Would it be possible to use the Knock sensor input on the SAFC 2 for the O2 and then you could record or at least compare #s on the same screen. Is the voltage range the same? Is it even a voltage output? I believe KS reads a voltage under the sensor check, that is why I think this might work
I was just driving looking at the screen with the rpm and tps bar graphs and all the other stuff and noticed the knock section reads 0 because I don't have it hooked up. Would this work? Could you use it for anything else? Thanks for any input
idea for a solution----Would it be possible to use the Knock sensor input on the SAFC 2 for the O2 and then you could record or at least compare #s on the same screen. Is the voltage range the same? Is it even a voltage output? I believe KS reads a voltage under the sensor check, that is why I think this might work
I was just driving looking at the screen with the rpm and tps bar graphs and all the other stuff and noticed the knock section reads 0 because I don't have it hooked up. Would this work? Could you use it for anything else? Thanks for any input
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Joined: Jul 2002
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Re: AFC reading O2 voltage WITHOUT blue wire mod....... (Bailhatch)
I don't think so...
Use a voltmeter to be sure... but I'm pretty sure the o2 operates at varied ranges of voltage to indicate different mixtures...
where as the knock sensor just sends a single "trigger" voltage to alert of a single knock.
Use a voltmeter to be sure... but I'm pretty sure the o2 operates at varied ranges of voltage to indicate different mixtures...
where as the knock sensor just sends a single "trigger" voltage to alert of a single knock.
Mad Scientist
Joined: Nov 2002
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From: tallafizzy, FL state
Re: AFC reading O2 voltage WITHOUT blue wire mod....... (NonovUrbizniz)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NonovUrbizniz »</TD></TR><TR><TD CLASS="quote">I don't think so...
Use a voltmeter to be sure... but I'm pretty sure the o2 operates at varied ranges of voltage to indicate different mixtures...
where as the knock sensor just sends a single "trigger" voltage to alert of a single knock.</TD></TR></TABLE>
Use a voltmeter to be sure... but I'm pretty sure the o2 operates at varied ranges of voltage to indicate different mixtures...
where as the knock sensor just sends a single "trigger" voltage to alert of a single knock.</TD></TR></TABLE>
Thread Starter
Honda-Tech Member
Joined: Sep 2002
Posts: 5,517
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From: ME
Re: AFC reading O2 voltage WITHOUT blue wire mod....... (NonovUrbizniz)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NonovUrbizniz »</TD></TR><TR><TD CLASS="quote">I don't think so...
Use a voltmeter to be sure... but I'm pretty sure the o2 operates at varied ranges of voltage to indicate different mixtures...
where as the knock sensor just sends a single "trigger" voltage to alert of a single knock.</TD></TR></TABLE>
So the knock signal would just be short bursts of the same voltage? I wonder how the SAFC II processes and displays the info. Maybe the number the AFC gives is a knock/time kinda thing. like 3 "triggers" in one second, or something like that. Anyone know for sure?
Use a voltmeter to be sure... but I'm pretty sure the o2 operates at varied ranges of voltage to indicate different mixtures...
where as the knock sensor just sends a single "trigger" voltage to alert of a single knock.</TD></TR></TABLE>
So the knock signal would just be short bursts of the same voltage? I wonder how the SAFC II processes and displays the info. Maybe the number the AFC gives is a knock/time kinda thing. like 3 "triggers" in one second, or something like that. Anyone know for sure?
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