I know this has been beat to death but this may be a little different. 2011 2wd with new rotors pads and both abs sensors replaced. Left one first and 6mos later the right. When light came back on after replacing the left, code said right sensor fault. Now light is back on and remaining . Codes are now saying mismatched wheel speed. Have new winter tires with checked and confirmed equal air pressure all around. Light goes off when starting truck and driving away , 200 ft comes back on. Voltage checked and equal/ok. I'm at a loss as to why this is happening.
Any ideas?

 

Are all 4 tires the same size, brand, condition, properly inflated ?

 

yes they ar . Only second winter on them as well. Didn't have this issue last winter

 

Also I had them apart and checked reluctor ring circumference, distance between bars on reluctor ring and number of bars , measured tip to spindle on sensors and cleaned everything before reassembly. Everything was equal.

 

So I seen another post on here pertaining to basically the same kind of issue as myself. So I checked the measurement of the reluctor ring to the spindle through the abs sensor hole and quess what? There was almost 1/16" difference in distance between left and right! I had to carefully grind off that much from the right sensor to get it closer to the ring and , yaaaay! Fixed! Light is out and issues gone.
thanks for the forums as reading them has helped greatly.