Camry Sedan 4-Door V6-3.0L (1MZ-FE) (1994)
EGR Valve: Testing and Inspection
PROCEDURE
1. Check seating of the Exhaust Gas Recirculation (EGR) valve.
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Start the engine and check that the engine starts and runs at idle.
2. Check EGR valve operation.
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Apply vacuum directly to the EGR valve with the engine idling.
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Check that the engine runs rough or dies.
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Reconnect the vacuum hoses to the proper locations.
If no problem is found with this inspection, the valve is okay; otherwise inspect EGR valve and passages.
3. Visual inspection
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Remove EGR valve.
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Check the valve for sticking and heavy carbon deposits.
If a problem is found, repair as needed.
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Install EGR Valve with new gasket