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constantly changing voltage offset on wideband?
Posted: Mon Aug 07, 2006 6:14 pm
by kaj
again, i searched to no avail.
pretty much EVERY time i start my car, i have to RE adjust the voltage for my wideband so that the hondata reads the same as my wideband display.
does anyone else have this problem and, if so, what did you do about it?
Posted: Tue Aug 08, 2006 9:12 am
by Spunkster
What wideband are you using?
Posted: Tue Aug 08, 2006 11:53 am
by kaj
Spunkster wrote:What wideband are you using?
oh, sorry. PLX M-series. i'm stumped. my tuner and i have both had issues. it's very hard to tune the car for cold start when we have to first take time to play with the wideband voltage readings :( i've attatched my cal. file.
Posted: Tue Aug 08, 2006 12:28 pm
by Spunkster
This sounds like something you will need to talk to PLX Devices about.
Posted: Tue Aug 08, 2006 1:04 pm
by turbosi92
I have a simliar issue.
How is your hooked up? Power, Ground in particular?
Posted: Tue Aug 08, 2006 1:05 pm
by kaj
turbosi92 wrote:I have a simliar issue.
How is your hooked up? Power, Ground in particular?
PLX? power from cigarette lighter, grounded to chassis.
Posted: Tue Aug 08, 2006 1:27 pm
by Spunkster
You will be much better off connecting it into the fuse box on one of the ignition switched pins.
Posted: Tue Aug 08, 2006 6:02 pm
by kaj
Spunkster wrote:You will be much better off connecting it into the fuse box on one of the ignition switched pins.
i'll give that a shot and let you guys know if there is any noticed improvements. :D
Posted: Wed Aug 09, 2006 6:59 am
by TurboGSR96
kaj wrote:Spunkster wrote:You will be much better off connecting it into the fuse box on one of the ignition switched pins.
i'll give that a shot and let you guys know if there is any noticed improvements. :D
I have 4 gagues and a boost controller all hooked up to the pins @ the fuse box.
Posted: Sat Aug 12, 2006 10:23 pm
by TurboLS
when you do cold start, do have the PLX on for a while before you start the car?? If not, remember that the O2 sensor has to warm up. It reads 14.7 no matter what for a few minutes until it has been sufficiently heated. I also have noticed that the readings between Hondata and the PLX meter display are not exact. There is a range of voltages for each A/F reading. These also depend on whether the car is increasing load or decreasing load.
I tackled this problem a lot in the PLX forums.
http://www.plxdevices.com/forum/viewtop ... sc&start=0