How accurate is OBD data?

s54smg2 Site Owner ///M3 Philadelphia, Pa Posts: 355	How accurate is OBD data? Aug 1, 2015 16:18:04 GMT -5 Quote Select Post Deselect Post Link to Post Back to Top Post by s54smg2 on Aug 1, 2015 16:18:04 GMT -5 How accurate is OBD2 data from the car? I noticed the battery reading low and decided to test the voltage simultaneously. Here are the results:
	Last Edit: Aug 1, 2015 16:19:13 GMT -5 by s54smg2