2006 Toyota Tundra 4.7L Rear O2 Sensor Problems at Breaking News

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2006 Toyota Tundra 4.7L Rear O2 Sensor Problems, Contaminants inside the exhaust system can wear out the o2 sensors faster. It has the p0138 and showing on both bank 1 and bank 2 rear sensors. The oxygen, or o2, sensor reads the percentage of oxygen in the exhaust coming from the engine and sends this information to the computer.

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An o2 sensor [not to be confused with an a:f sensor, which is different] works by comparing the amount of oxygen [o2] in the exhaust stream to the amount of o2 in the outside air. Po 138 bank 1 sensor 2 shorted to voltage and code po158 means bank 2 sensor two shorted to voltage. Contaminants can enter the exhaust system from engine leaks, such as the engine oil leaking into the combustion chamber, and coolant leaks.

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In fact for anyone reading this, it's never the problem on a toyota. Contaminants inside the exhaust system can wear out the o2 sensors faster. Toyota tundra 4.0l 2006, black mass air flow sensor connector by standard®. Plug the connector back in. This has been going on for about a week now.