Exhaust Gas Recirculation System Check

1. Disconnect the vacuum hose (green stripe) from the EGR valve, and connect a hand vacuum pump through the three-way terminal.




2. Regarding cold condition [coolant temperature: 20°C (68°F) or less] and warm condition [coolant temperature: 70°C (158°F) or more] of the engine, check the following two points:











3. Disconnect the three-way terminal, and connect the hand vacuum pump to the EGR valve.
4. When a negative pressure of 31 kPa (9.1 in.Hg.) is applied during idling, check that the engine stops or idles unstably.