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DTC P1146, P1166 HO2S2 EC-1027 [VG33E] C D E F G H I J K L M A EC Specification data are reference values and are measured between each terminal and ground. CAUTION: Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam- Diagnostic Procedure UBS00DNJ 1. RETIGHTEN GROUND SCREWS 1. Turn ignition switch OFF. 2. Loosen and retighten engine ground screws. >> GO TO 2. TER- MINAL NO. WIRE COLOR ITEM CONDITION DATA (DC Voltage) 57 Y Heated oxygen sensor 2 [Engine is running] ● Warm-up condition. ● Revving engine from idle to 3,000 rpm quickly after – Keeping the engine speed between 3,500 and 4,000 0 - Approximately 1.0V BBIA0418E |