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Code 15: (Oxygen Sensor)

WARNING: This page is about a different car, the 1994 Mazda RX-7. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Trouble Code No. 15 Diagnostic Chart (Oxygen Sensor)
G93B80623
Fig 2: Trouble Code No. 15 Schematic (Oxygen Sensor)
G93C80624
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