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Acura DTC

Acura DTC P1154

Manufacture

Acura DTC

Code

P1154

Definition

HO2S-21 (Bank 2 Sensor 1) Transition Time Ratio

Description

DTC P0101, P0102, P0103, P0106, P0107, P0108, P0117, P0118, P0121, P0122, P0123, P0131, P0132, P0133, P0134, P0135, P0300, P0301-P0306, P0441 and P1441 not set, system voltage from 10-16v, engine speed from 1500-3000 rpm in closed loop for 1 minute, ECT s

Cause

  • Air leaks at the exhaust manifold or exhaust pipesHO2S signal circuit is open or shorted to ground (intermittent)HO2S heater power circuit is open, or the heater has failedHO2S contaminated with wrong fuel, has deteriorated or failed

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