UD 2600 exhaust sensor cleaning

ud 2600 2011 engine exhaust sensor cleaning. do this every 6 to 8 weeks preventive matenance. to save your self aggravation and $$$$. takes approx 10 min to do yourself. or you can have the dealer do for approx $400 to $1000 & a good week waiting for repair. DONT LET THE SENSOR GO OFF. if it does the engine will de accelerate and you'll go down the road at 15 miles an hour, and you'll have to have the truck towed to the dealer.