Question about 2001 GMC Yukon Denali
Did you disconnect the battery after installing the new O2 sensors. The reason I say this, is the ECU has "memorized" the old O2 sensor read outs and now has to readjust to the new sensors. I would try disconnecting the negative battery cable for 20 minutes and reconnecting, drive and see if it does not clear its self.
Let me know.
Posted on Jul 19, 2009
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Posted on Jan 02, 2017
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