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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 192 (Engine Control System Self-Diagnostics - 4 CYL (PZEV)) >> Diagnostic Tests >> DTC P0420: Catalyst System Efficiency Below Threshold (Bank No. 1) >> Conditioning A/F Sensor & Heated Oxygen Sensor No. 2 For Testing

Conditioning A/F Sensor & Heated Oxygen Sensor No. 2 For Testing

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For conditioning of the A/F sensor and heated oxygen sensor No. 2 for testing, see Fig 1.

Fig 1: DTC P0420 A/F Sensor & Heated Oxygen Sensor No. 2 Conditioning For Testing
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