Hyundai Coupes/Sedans 1986-1993 Repair Guide

EGR Control Solenoid Valve (California)

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TESTING



See Figures 1, 2, 3 and 4

  1. Tag and disconnect the vacuum lines and harness connector from the valve.
  2.  



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Fig. Fig. 1: Applying vacuum to the EGR solenoid valve-California Excel (with fuel injection)



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Fig. Fig. 2: Applying vacuum to the EGR solenoid valve-California Sonata

  1. Connect a hand vacuum pump to the nipple where the green striped hose was connected and draw vacuum.
  2.  



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Fig. Fig. 3: Applying battery voltage to the EGR Solenoid valve-California vehicles



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Fig. Fig. 4: Check EGR solenoid valve resistance-California vehicles

  1. Connect a 12 volt source to the solenoid and check as follows:
    1. With voltage applied, vacuum should hold.
    2.  
    3. With voltage disconnected, vacuum should bleed off.
    4.  
    5. Measure the resistance between the terminals of the solenoid valve.
    6.  
    7. Resistance should be 33-44 ohms at 68°deg;F (20°deg;C).
    8.  

  2.  

 
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