My Tahoe is starting to show its age or mileage. I’m somewhere around 220,000 miles now. The check engine light came on a little while ago and I’ve reset it several times. It keeps coming back. Using my OBD2 reader today has added a code.
The P0175 is new today and gives me more to look at. One of my first steps will be to point this out to the tahoeyukon forum because there are a lot of great people there.
I forgot to update this post. After replacing the oxygen sensors (first using cheap Chinese sensors) I got this mostly fixed. Now the cheap set failed miserably and made things worse. Then I bought AC Delco units and they worked but the cheap Chinese ones appear to have damaged one of my catalytic converters. Did I save money? Yeah, no.