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Home >> Nissan-Datsun >> 1986 >> Sentra MPG >> Repair and Diagnosis >> Engine Performance >> System >> EGR System - Diesel >> Component Testing >> Solenoid Valves
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Solenoid Valves

  1. Remove solenoid valves. Check air passages by drawing air and blowing through valve at designated points. Airflow should exist from B to C, and should be blocked from A to B and from C to A.
  2. Apply battery voltage at harness connectors and check airflow again. Flow should now exist from A to B, but not from B to C or C to A. See Fig 1 .
Fig 1: Solenoid Valve Testing Connections
G38068
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