S15/T15 Sonoma P/U 2WD L4-2.2L VIN 4 (1995)
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Oil Pressure Gauge: Testing and Inspection
Gauge Readings Are Inaccurate
1.
Remove lead from sensor, then connect tester J 33431-A or equivalent to sensor lead and ground.
2.
If gauge responds accurately to tester, replace sensor.
3.
If gauge does not respond accurately to tester, replace cluster.