Fig. 63: Identifying Front HO2S Terminals
Courtesy of MAZDA MOTORS CORP.
If not within the specification, replace the front HO2S. (See
FRONT HEATED OXYGEN
SENSOR (HO2S) REMOVAL/INSTALLATION [LF]
.)
Front HO2S heater resistance
1-10 ohms
FRONT HO2S CIRCUIT OPEN/SHORT INSPECTION
1. Disconnect the PCM connector. (See
PCM REMOVAL/INSTALLATION [LF]
.)
2. Disconnect the front HO2S 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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