Vacuum Regulating Valve Inspection

Engine Hybrid System. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

2Kd-Ftv Emission Control. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

INSPECT ELECTRIC VACUUM REGULATING VALVE ASSEMBLY (for EGR)

Vacuum Regulating Valve -- Inspection

NOTICE:

Do not remove the electric vacuum regulating valve from the bracket.

1. INSPECT ELECTRIC VACUUM REGULATING VALVE ASSEMBLY (for EGR)

Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
1 - 2
20°C (68°F)
11 to 13 Ω
1 - Body ground
2 - Body ground
20°C (68°F)
10 kΩ or higher
If the result is not as specified, replace the electric EGR control valve assembly.

Check the operation of the E-VRV.
1. When a vacuum of 67 kPa (500 mmHg, 19.7 in.Hg) is applied to port F, check that air flows from port E to the filter.
  
  Text in Illustration
  *A
  w/ EGR Cooler
  *B
  w/o EGR Cooler
  *1
  Port E
  *2
  Port F
  *3
  Filter
  -
  -
  *a
  Air
  *b
  Vacuum
2. Apply battery voltage across terminals 1 and 2.
  Text in Illustration
  *A
  w/ EGR Cooler
  *B
  w/o EGR Cooler
  *1
  Port E
  *2
  Port F
  *a
  Air
3. Check that air flows from port E to port F.
  If the result is not as specified, replace the electric EGR control valve assembly.