CLASS RACER FORUM - View Single Post

Ed Wright · 07-31-2015, 01:51 PM

A misfire in a street car does the same thing, often skews the fuel trims until fixed.
Reason is oxygen out the exhaust ports when misfiring. The wide band only knows oxygen content, and converts the oxygen level to air/fuel ratio. High oxygen = lean, to the wideband.

07-31-2015, 01:51 PM	#10
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: A/F Ratio A misfire in a street car does the same thing, often skews the fuel trims until fixed. Reason is oxygen out the exhaust ports when misfiring. The wide band only knows oxygen content, and converts the oxygen level to air/fuel ratio. High oxygen = lean, to the wideband. __________________ Ed Wright 4156 SS/JA