Check Engine Code 161 - 02 IS300 - Lexus IS Forum
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post #1 of 4 (permalink) Old 10-02-2006, 11:05 AM Thread Starter
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Check Engine Code 161 - 02 IS300

Hello, can someone tell me where this sensor is located on the car?

Here is the description for code 161 from the book that came with the scanner:

O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)


Thanks in advance,
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post #2 of 4 (permalink) Old 10-02-2006, 05:51 PM
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Bad o2 sensor- replace. Open or short in the heater circuit of the o2 sensor-check and repair harness or connector between the EFI main relay, o2 sensor and ECM.

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post #3 of 4 (permalink) Old 10-02-2006, 10:33 PM
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that particular 02 sensor is located on the Y-Pipe directly under the passenger seat.

The wire runs into the car (underneath the passenger seat) via a gromet in the floorboard. good luck.

///Rice-R

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post #4 of 4 (permalink) Old 10-03-2006, 11:57 AM Thread Starter
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Thanks for your quick responses! I appreciate it..I'll check it out when I get home.
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