Manuals through 2025 now available!
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LEMON is the spiritual successor to CHARM, I recommend you try it!
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Oxygen Sensor: Testing and Inspection
Fig. 7 Oxygen sensor connector terminal identification:
Connect a suitable ohmmeter between
oxygen sensor electrical connector terminals A and B,
Fig. 7. Ohmmeter should indicate 5 to 7 ohms. If an infinite reading is obtained, replace oxygen sensor. To check oxygen sensor operation, diagnostic tester M.S. 1700 must be used.
