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Acura DTC

Acura DTC P2273

Manufacture

Acura DTC

Code

P2273

Definition

Front Secondary HO2S (Bank 2, Sensor 2) Circuit Signal Stuck Rich

Description

If, after current is applied to the front secondary HO2S heater, the front secondary HO2S does not fluctuate and the output is stuck within the specified area, a malfunction is detected. The front secondary HO2S (bank 2, sensor 2) output voltage is 0.293 V or more. NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot.

Cause

  • Poor connections or loose terminals at the secondary HO2S (Sensor 2) and the PCMFaulty secondary HO2S (Sensor 2)

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