Camry Coupe 2-Door V6-3.0L (1MZ-FE) (1996)
EGR Backpressure Transducer: Testing and Inspection
EGR VACUUM MODULATOR INSPECTION
1. DISCONNECT VACUUM HOSES FROM EGR VACUUM MODULATOR
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Disconnect these vacuum hoses:
(1) Vacuum hose from P port
(2) Vacuum hose from Q port
(3) Vacuum hose from R port
2. INSPECT EGR VACUUM MODULATOR OPERATION
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Block ports P and R with your finger.
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Blow air into port Q, and check that the air passes through to the air filter side freely.
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Start the engine, and maintain speed at 3,500 rpm.
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Repeat the above test.
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Check that there is a strong resistance to air flow.
3. RECONNECT VACUUM HOSES TO EGR VACUUM MODULATOR
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Connect these vacuum hoses:
(1) Vacuum hose to P port