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XfireZ51 · 03-06-2017

Since the left (driver's) side appears to be leaner than the passenger, I would check that first. I would also swap the O2's for AC Delco units.
Finally, make sure the O2's or the wires are not covered by anything. The way the O2 works is to compare ambient air to the mixture coming down from the exhaust. So air needs to move freely into the sensor itself.

03-06-2017	#102
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,686	Re: Rough running Since the left (driver's) side appears to be leaner than the passenger, I would check that first. I would also swap the O2's for AC Delco units. Finally, make sure the O2's or the wires are not covered by anything. The way the O2 works is to compare ambient air to the mixture coming down from the exhaust. So air needs to move freely into the sensor itself.