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Christ · 11-29-2009, 02:13 AM

It wouldn't work on pre-OBD2 cars, and I think some of the OBD-2a versions still didn't have heated sensors.

While heating the sensor surely will have some effect on mippigs, it'll be well within the noise of day to day variation, and unable to be tested without serious testing procedures. The O2 feedback sensors have very little overall effect on AFR compared to the other sensors in the control loop.

11-29-2009, 02:13 AM	#3 (permalink)
Christ Moderate your Moderation. Join Date: Nov 2008 Location: Troy, Pa. Posts: 8,919 Pasta - '96 Volkswagen Passat TDi 90 day: 45.22 mpg (US) Thanks: 1,369 Thanked 430 Times in 353 Posts	It wouldn't work on pre-OBD2 cars, and I think some of the OBD-2a versions still didn't have heated sensors. While heating the sensor surely will have some effect on mippigs, it'll be well within the noise of day to day variation, and unable to be tested without serious testing procedures. The O2 feedback sensors have very little overall effect on AFR compared to the other sensors in the control loop. __________________ "¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"