a/f richens at idle when I turn headlights on(in open loop)...
 

when I turn on any electrical device on in my car(headlights, fan, etc...)my a/f ratio at idle drops almost a full point. This only happens when i'm in open loop. When I switch to closed loop, it will drop, but after a couple seconds the a/f will be right where its supposed to be. My a/f readings seem to be on point while driving.

FYI, im using Uberdata 1.70

Re: a/f richens at idle when I turn headlights on(in open loop)... (See Are X)
 

let me guess.... autometer gauge right?

when you cut on your headlights the voltage to the gauge changes, thus making the gauge think af has changed. trust me i used to have the gauge

that or do you have your ELD turned on, or off???

Re: a/f richens at idle when I turn headlights on(in open loop)... (wantboost)
 

when i was using my autometer turning on my rear defrosoter, fan, headlights ect would "lean" out the guage.

Re: a/f richens at idle when I turn headlights on(in open loop)... (See Are X)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by See Are X &raquo;</TD></TR><TR><TD CLASS="quote">when I turn on any electrical device on in my car(headlights, fan, etc...)my a/f ratio at idle drops almost a full point. This only happens when i'm in open loop. When I switch to closed loop, it will drop, but after a couple seconds the a/f will be right where its supposed to be. My a/f readings seem to be on point while driving.

FYI, im using Uberdata 1.70</TD></TR></TABLE>

Datalog it and see if it moves into a different load cell. Tune accordingly.

Re: a/f richens at idle when I turn headlights on(in open loop)... (Jim Truett)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jim Truett &raquo;</TD></TR><TR><TD CLASS="quote">Datalog it and see if it moves into a different load cell. Tune accordingly.</TD></TR></TABLE>

yeah i agree ^^^ you can only trust gages to a certian point. you need to go by what your ECU is reading. https://honda-tech.com/forums/images/smilies/emthup.gif