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Home >> Honda >> 1987 >> Accord LX, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Anti-AFTERBURN System >> Component Testing >> Vacuum Switch B

Vacuum Switch B

  1. Disconnect vacuum hose to vacuum switch B and connect a hand vacuum pump to hose. Apply vacuum to switch. Check for voltage at Yellow/Blue and Black terminals. Turn ignition on and check voltage.
  2. Voltage should be available when vacuum below 1.2 in. Hg is applied. If there is no voltage, replace vacuum switch B and retest.
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