engine lite on first bank 02 sensor obd code171/lean reading

by edward knapp
(wellington fl 33414)

Will efie work or does 02 sensor have to be replaced too? I have hho system on 04 tundra base model3.4l

Comments for engine lite on first bank 02 sensor obd code171/lean reading

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Response From
by: Hydrogen-Generators-USA.com

Hi Edward,

The EFIE will work for your Toyota Tundra you will need the wide-band EFIE. You also have the option of a FS2 HHO Chip please read that page to help make your decision.

You should replace Oxygen Sensors (hydrogen on demand or not), after 100,000 miles on cars built in the last 15 years or so. For mid 1980's to 1990's approximately every 60,000 miles and prior to that every 30-50,000 miles.

Thank You

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