EGR Valve Inspection

Reference: EGR VALVE REMOVAL AND INSTALLATION 

1. Check resistance between the following terminals of EGR valve (1) in each pair.

   If found faulty, replace EGR valve assembly.

   EGR valve resistance 

   A - B terminal: 20 - 24 ohm at 20°C, 68°F 

   C - B terminal: 20 - 24 ohm at 20°C, 68°F 

   F - E terminal: 20 - 24 ohm at 20°C, 68°F 

   D - E terminal: 20 - 24 ohm at 20°C, 68°F 

   B terminal - valve body: Infinity 

   E terminal - valve body: Infinity 

   Fig 1: Checking Resistance Between Terminals Of EGR Valve

   Courtesy of SUZUKI OF AMERICA CORP.
2. Remove carbon from EGR valve gas passage.
   CAUTION: Do not use any sharp-edged tool to remove carbon.
   Be careful not to damage or bend EGR valve (1), valve seat (3) and rod.
3. Inspect valve (2), valve seat and rod for fault, cracks, bend or other damage.

   If found faulty, replace EGR valve assembly.

   Fig 2: Checking Valve Seat

   Courtesy of SUZUKI OF AMERICA CORP.