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Front Oxygen (A/F) Sensor: Inspection

Measure the resistance between front oxygen (A/F) sensor terminal.

Fig 1: Measuring Resistance Between Front Oxygen (A/F) Sensor Terminal
G06344728Courtesy of SUBARU OF AMERICA, INC.
RESISTANCE REFERENCE CHART

Terminal No. Standard
1 and 2 2.4 ± 0.24 Ω (20°C (68°F))
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