Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Celica 1988-1989.1993-1994.2000 Approved Toyota Celica 1993 EGR_FUNC

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EGR_FUNC


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                               P - EGR FUNCTION TESTING

                                       1993 Toyota Celica




         1989-95 ENGINE PERFORMANCE
         Toyota EGR Function Testing

         All Models

    EGR VALVE
         1) Disconnect vacuum hose to EGR valve. Using a hand-held
vacuum pump, apply vacuum to EGR valve with engine at idle. Engine
should run rough or stall. If engine does not run rough or stall,
check EGR valve passages for blockage or faulty EGR valve. Clean
passages as necessary. If passages are clear, replace EGR valve.
         2) Install vacuum gauge to ported vacuum port to EGR. Raise
engine RPM. Vacuum should be present. If vacuum is not present, clear
vacuum port of blockage.



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