Camry, Celica, & Pickup
- Using a 3-way connector, connect a vacuum gauge to the hose between the EGR valve and EGR vacuum modulator.
- Check seating of EGR valve by starting engine and checking that engine starts and runs at idle.
- Check BVSV with coolant temperature below 86°F (30°C) on Celica and Pickup models. Check that vacuum gauge indicates zero at 3000 RPM.
- On Camry, check BVSV with coolant temperatures below 113°F (45°C). Check that vacuum gauge indicates zero at 2500 RPM.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- With engine hot, check that vacuum gauge indicates low vacuum at 3000 RPM on Celica and Pickup models, or 2500 RPM on Camry. Disconnect vacuum gauge and reconnect hoses to proper locations.
- Apply vacuum directly to EGR valve with engine idling. Check that the engine runs rough or dies. Reconnect vacuum hoses to proper locations. If no problem is found with this inspection, system is OK.