Im going to try to make some adjustments to my VAFC settings, but I want and need to install an AF ratio gauge. Anybody have any ideas or install-instructions as to whether or not ill be able to tap the stock Honda O2 sensor for an autometer AF ratio gauge?


Modified by danmanh22 at 10:38 PM 12/15/2003


Modified by danmanh22 at 4:47 PM 12/15/2003

 

I think you can get it from D7 and D12(ground) of the ECU connector.
I have measure this on 2000 prelude. It fluctuate between .95 and .1 volts.

 

Keep in mind that the Autometer isnt designed for tuning in mind. I would save up and at least get the GReddy A/F monitor.

As for wiring, the only thing you need to do for an autometer is make sure that the O2 signal wire is 12v. My HX sensor runs a different voltage which makes the readings entirely incorrect (the gauge would go so lean or rich that the gauge would turn off.)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mastarolla &raquo;</TD></TR><TR><TD CLASS="quote">Keep in mind that the Autometer isnt designed for tuning in mind. I would save up and at least get the GReddy A/F monitor.

As for wiring, the only thing you need to do for an autometer is make sure that the O2 signal wire is 12v. My HX sensor runs a different voltage which makes the readings entirely incorrect (the gauge would go so lean or rich that the gauge would turn off.)</TD></TR></TABLE>
thats becasue you have a wideband sensor. 1v-5v

 

yea i know...the sensor costed me 4 bills. Damn HX!!

But still..point of the matter is that the autometer isnt very easy to tune off of.