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Modules, Relays & Solenoids: Solenoids: Notes

WARNING: This page is about a different car, the 1994 Mercury Grand Marquis, 1994 Lincoln Town Car, 1994 Lincoln Mark VIII, and 1994 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
  1. Secondary Air Injection By-Pass/Diverter (AIRB/AIRD) Solenoids -Faults in secondary air injection solenoids or circuits should set a diagnostic trouble code. See QUICK TEST in TESTS W/CODES - EEC-IV (4.6L) article in the ENGINE PERFORMANCE section. If diagnostic trouble code has not been set, disconnect solenoid to be tested.
  2. Measure resistance between sensor terminals. If resistance is not 50-100 ohms, replace solenoid. If resistance is 50-100 ohms, solenoid is okay. See CIRCUIT TEST KC in the appropriate TESTS W/CODES - EEC-IV (4.6L) article in the ENGINE PERFORMANCE section for additional circuit testing.
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