2004 Camry oxygen sensor

do you use aftermarket airfilters? some says K&N will mess up your O2
sensors

Aren't emissions parts covered under a longer warrenty that the 3 year =
36000 mi?

Oxygen sensors on PZEV rated cars should be good for 10 years or
150,000 miles?



mi?

Isn't emissions warranty longer than that? Check with your dealer and
even call the 800 Toyota number about this.

IMO Denso sensors in these cars are junk. They cost car companies and
owners alike money and catalytic converters. I fixed a P0420 changing
over to Bosch planar type, and those Densos weren't even showing
codes. Go with Bosch Planar, best in class.

www.boschautoparts.com/Products/OxygenSensors/PlanarO2.htm

(BTW, some Toys use funny sensors you can only get over the dealer
counter. It helps to call the 1-800 Toyota number and see if you can
get it fixed for free.)

There's varying opinions about what effects O2 sensors. Some say leaded fuel
or oil-burning. The air-filter is a bit of a stretch tho. My '96 is still
not throwing up codes at 185,000ks.

Jason

Sulfur in gasoline slowly degrades the performance of the sensor.
European gas has very little sulfur, but US gas not so little. But I
consider oxygen sensors, like spark plugs, a maintenance item every
100,000 miles. (150,000 for PZEV).