PLX DM-5 AFR COMBO wideband questions, oppinions, a/f and data logging...

[MarkAngelo05]

Hi there,

I'm new to wideband air fuel ratio tuning. I am about to intall this and it has a narrowband simulator, to replace my stock o2 sensor. to my understanding, it does not only mimic the narrow band o2 signal, but it is a more accurate standardized 0 - 1.0 voltage reading, unlike our stock o2 sensors someone could be running "just right" at .83 narrrow band stock o2 voltage, and some people could be reading .96 and be knocking/pulling timing like crazy...


Anyways, has anybody on here ever logged the narrow band o2 simulation? I am thinking that that is my only way to log this right now because I am using tunerstein with my palm pilot IIIc and I do not think there is a wideband input.. or is there a way to log my wideband?

Has anyone experienced using this particular wideband kit? It's the PLX DM-5 AFR Combo...

Also, what air fuel ratio seems to work well for you folks out there???

Mark Padilla

 

[blcknspo0ln]

Every car is different, but most tuners shoot for 11:1 AFR. Once you get your wideband hooked up, I suggest getting a VERY GOOD friend of yours to drive the car and do a 3rd gear pull. Since most loggers I know don't log wideband, you'll have to just watch the gauge yourself and make adjustments until you get a nice flat 11:1 or richer AFR during a WOT pull. It's really not that hard.

p.s., don't ever trust a narrowband, ever.