std O2 sensor output table
The oxygen sensor can become contaminated by, but not limited to the
- Leaded fuel - leaded fuel is the most common cause of O2 sensor
contamination. Lead particles can coat the ceramic element and the sensor
cannot produce enough voltage output for either the computer or the gauge.
- Silicone - Sources are antifreeze, RTV silicone sealers,
waterproofing sprays, and gasoline additives. Silicone tends to form a
- Carbon - Carbon contamination results from an excessively rich
fuel mixture. Carbon in the fuel can coat the sensor, too.