2007 tahoe codes c0561, p0172, p0175

[25homes]

Had Tahoe in for Evap vent silonide to be moved for check engine light. Son as they did this I got check engine back on and traction control light service stability any traction control. They say totally unrelated. Now have all 3 codes c0561, p0172, p0175... cleaner MAY sensor and replaced both o2 sensors and still have lights...dealership has no answers for any of this...it s driving Mr crazy traction light only comes on usually at low speed any truck runs fine except hard shift when tract light on...any hhelp here

 

[samotahoe]

they are unrelated but you can possibly have something going on in the motor somewhere or bad cats.