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Code 18: (Throttle Sensor - Narrow Range)
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Code 18: (Throttle Sensor - Narrow Range)
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. 18 Diagnostic Chart (Throttle Sensor - Narrow Range)
Fig 2: Trouble Code No. 18 Schematic (Throttle Sensor - Narrow Range)