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Exhaust Gas RECIRCULATION (EGR) System Test: Notes

NOTE: EGR systems contain different components depending on application. See Figure, Figure, Figure and Figure . When testing EGR system and components, use proper illustration to determine component location.
NOTE: When performing EGR system test, it may be necessary to monitor engine RPM by using scan tool. Scan tool may be connected to data link connector No. 3 for monitoring engine RPM. See Figure, Figure, Figure, Figure and Figure .