air fuel/voltage conversion

[lncatch]

so im woking on trying to tune the car. just put the new turbo in and only real problem im running into is that the datalogging for the split second FTC outputs the afr as voltage. Anyone know where i can find a table or conversion chart that will convert the voltage into the afr so i dont have to try and watch the gauge the tach and the boost all at the same time.

 

[dmention7]

The SplitSecond will convert the raw voltage values into AFR. You just need to input the correct calibration factors. It may depend on your particular wideband, but AEM's documentation says that it outputs 0v at 10.0 AFR and 4v at 18.0 AFR. IIRC, you need both an offset and a slope factor for the SSAFC, so your offset would be 10 (AFR = 10 at 0v) and slope is 2 (every 1 volt change indicates a 2.0 AFR change)

That may not be exactly the format you need, but it should be the necessary data (or at least give you an idea)... I don't have the software in front of me to look at right now.

 

[lncatch]

appriciate the info, i was kindof unsure about how to hook it up, did a little research tho and figured out how to hook it up to the piggy back....i didnt know that there was a wire on the wideband specifically to hook up to an input like that