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PGM-FI System Primary Heated Oxygen Sensor (HO2S) (Sensor 1) (cont'd) Troubleshooting Flowchart Is DTC P0133 and/or P0153 NO YES Intermittent failure, system is OK C251, C254 (located at right shock — The MIL has been reported on. stored. Problem verification: 2. Start the engine. Hold the engine at 3,000 rpm with no 3. Connect the SCS service con- nector. 4. Test-drive under following conditions. speed — Transmission in posi- tion — Until readiness code comes on Replace the primary HO2S (Sen- Main Menu Table of Contents |