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Contamined air fuel ratio sensors?
Posted to Technical Theory Forum on 2/21/2013 9 Replies

[2007 Toyota Sequoia SR5, Fuel Supply Photo] Recently had a 2007 Sequoia with engine faults P0138 and P0158 B1 and B2 post cat oxygen sensors stuck on high voltage. Freeze frame data and live engine data confirmed these sensors both hanging at .8 volts during... Login to read more.

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car Vehicle Data

2007 Toyota Sequoia SR5 4.7L

Engine4.7 L
Trans5-speed Automatic (Electronic)

car Vehicle Data

2007 Toyota Sequoia SR5 4.7L

Engine4.7 L
Trans5-speed Automatic (Electronic)