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Code 23: (Fuel THERMOSENSOR)

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. 23 Diagnostic Chart (Fuel Thermosensor)
G93C80632
Fig 2: Trouble Code No. 23 Schematic (Fuel Thermosensor)
G93D80633