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I got the engine codes P0135 and P0155 on my 2002 Toyota Sequoia SR5 V8. Does anybody know what these codes are? Need to get new tags and can't afford to have this done. any help would be greatly appreciated! !

Vehicle: 2002 Toyota Sequoia SR5 V8

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Hi there,

These codes are for the heater circuits on both of the front O2 sensors. I would check for a power issue. This could be one of 3 blown fuses. #4 inside the cab, EFI1 and EFI2 under the hood. If all fuses are good, then you need to check the power wires.
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P0135 Toyota Code - Heated Oxygen Sensor Heater Circuit Malfunction Bank 1 Sensor 1
Read more: https://www.autocodes.com/p0135_toyota.html

P0155 Toyota Code - O2 Sensor Heater Circuit Bank 2 Sensor 1
Read more: https://www.autocodes.com/p0155_toyota.html

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