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View Full Version : Data logged - your opinion on the A/F reading?


CDR Stang
July 15th, 2006, 11:58 PM
I'm wondering if the wideband reading (0v-5v Analog 2) I'm getting is bouncing around too much. How rock solid are the reads supposed to be? Any opinions on that and the other readings in these files are welcomed. I'm very new to this.

Tom

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Justin@VMP
July 16th, 2006, 10:52 AM
Its pretty normal for it to bounce around.

CDR Stang
July 16th, 2006, 11:14 AM
Its pretty normal for it to bounce around.
I've been opening the log files in excel, grabbing 200-300 A/F readings in the rpm range and averaging them. Does this sound good to you?

Justin@VMP
July 16th, 2006, 11:47 AM
I don't normally average them mathematically, sometimes in my head. If you are tuning part throttle then the STs and LTs do that for you.

CDR Stang
July 16th, 2006, 07:22 PM
Justin:

The manual for the wideband says to Free Air calibrate the sensor often. What is often???

Justin@VMP
July 16th, 2006, 11:10 PM
Justin:

The manual for the wideband says to Free Air calibrate the sensor often. What is often???

Hmmm, every few thousand miles I guess. Make sure the car is running so you get full voltage.

CDR Stang
July 16th, 2006, 11:20 PM
Hmmm, every few thousand miles I guess. Make sure the car is running so you get full voltage.
Ok, I've been calibrating it about twice a day.:rolleyes: