INSPECT NO. 2 EGR VALVE ASSEMBLY
Apply vacuum and check that the rod of the No. 2 EGR valve operates as shown in the illustration. If the rod does not operate, replace the No. 2 EGR valve.
When a vacuum of 59 kPa (443 mmHg, 17 in.Hg) is applied to the diaphragm chamber, check that the valve turns and air flows out.
INSPECT NO. 3 VACUUM SWITCHING VALVE ASSEMBLY
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| *1 | Filter |
| *a | Air |
Check operation of the No. 3 vacuum switching valve assembly.
Check that air flows from port E to the filter.
If the result is not as specified, replace the No. 3 vacuum switching valve assembly.
Apply battery voltage across the terminals.
| *a | Air |
Check that air flows from port E to port F.
If the result is not as specified, replace the No. 3 vacuum switching valve assembly.