Adding Fuel ???

[Charger250]

So how do I check the a/f ratio? Does the datalogging in the tuner provide this information?

[Mike_Levy]

You need to get a wideband. The stock O2 sensors are not sensitive enough to read it properly. They can read rich or lean, thats it, nothing more then that.

[Charger250]

What no one will say is how to I get the a/f ratio. Does the tuner provide this information? Do I use the datalogging?

[Mike_Levy]

The wideband O2 will come with a Gauge that will tell you the exact A/F ratio.

[Charger250]

how do I measure the a/f ratio?

Will the datalogging do this?

[Charger250]

The wideband O2 will come with a Gauge that will tell you the exact A/F ratio.

So someone tell me I cannot read

If I had read everythign Mike listed I would have realized he answered my question. I was frustrated because everyone kept saying I only need a sensor, not a wideband o2 kit which comes with a sensor, and gauge.

Sorry for the confusion.

[Quick]

The "wideband" being referred to includes the sensor, controller, and display gauge. Usually sold in kits although you can buy components individually. The sensor requires a controller. converts the output and also controls the heater, does calibration, etc. Most controllers have an output for a gauge and usually an output for a separate data logger. Some of the fancier gauges have controllers for the display. Innovate's LC-1 for example has the sensor controller integrated into the cable. The Predator communicates with the ECM over the OBDII bus. If your car does not have a wideband builtin which is hooked up to the ECM then your wideband gauge will be an independent system and not readable by the Predator (data logging). Something like that.

[RFischer]

I believe there is work being conducted between Diablo and Innovate Motorsports to allow Innovate's LM-1 and/or LC-1 to work with Diablo? Until this happens, there is no way to link Wideband readings with Data Logging. That is my understanding to date.