Codes on 07 TUNDRA SR5 with 5.7

Asked by Bryan Dec 28, 2020 at 10:00 AM about the 2007 Toyota Tundra SR5 5.7L Double Cab 4WD

Question type: Maintenance & Repair

it is throwing 2 codes
P2241  indicating O2 sensor heater circuit is open or shorted causing the
circuit voltage to be low. This will cause the fuel feedback control to not work
and the ECM to put the engine into failure mode.
PO158 appears when the sensor has remained at a high voltage for to long.
This oxygen sensor is located behind the catalytic converter and sends info
to the PCM about the efficiency and released oxygen levels of the catalytic
converter/
Ideas on what to do or replace first?  

1 Answer
22,320

Guru9FSV8 answered 3 years ago

All oxygen sensors and A/F sensors are maintenance between 80-100K miles. How many miles are on them? Only buy Denso for a toyota.

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