Can ProScan Read Air/Fuel (A/F) Ratios? - Powered By Kayako eSupport

09 Sep 2010

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	Can ProScan Read Air/Fuel (A/F) Ratios?

Solution ProScan does not currently have built-in support for reading a vehicle's air/fuel ratio. While most vehicles do not have an actual a/f ratio sensor, the ratio can be determined from the oxygen sensor output voltage. However, if the vehicle is not equipped with wide-band oxygen sensors, the a/f ratio estimations will not be accurate for values significantly greater or less than the stoich value (14.7:1).

You should consult with your dealer or online automotive forums to determine the accuracy of your vehicle's oxygen sensors and best method of deriving the a/f ratio.

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03 Mar 2006 03:57 PM