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OBD 1 will have 2 sensors, bank one and bank 2. Both are pre cat. OBDII will have 4, bank one and two pre cat and one and two post cat.
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2007 GS 450h-Active Stabilizer/Radar cruise
1994 L Blue 3.70 VTD
ASE Master Automobile
ASE Advanced Level Specialist
Toyota Master Diagnostic Technician (former life)
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