If there is no open or short circuit, replace the throttle body. (See
INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION [LF]
.)
Fig. 44: Throttle Position Sensor Voltage Graph
Courtesy of MAZDA MOTORS CORP.
CIRCUIT OPEN/SHORT INSPECTION
1. Disconnect the PCM connector. (See
PCM REMOVAL/INSTALLATION [LF]
.)
2. Disconnect the throttle body connector.
3. Inspect the following wiring harnesses for an open or short circuit. (Continuity inspection)
2007 Mazda MX-5 Miata Sport
2007 ENGINE PERFORMANCE Engine Control System - MX-5 Miata
Microsoft
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