Navistar MaxxForce DT - Engine Throttle Valve (ETV)

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DIAGNOSTICMANUAL

1.EngineThrottleValve(ETV)

Figure16ETV(MaxxForce®DT ,9and10Engines)

EngineThrottleValve(ETV)

TheEngineThrottleValve(ETV)controlstheowoffreshair(boostedandcooled)intotheengine'sairintake

paththroughtheCACtohelpheattheexhaustaftertreatmentduringregeneration,andtoassistwhenheavy

EGRisrequested.TheelectronicportionoftheETVcontainsamicroprocessorthatmonitorsvalveposition,

electronicchambertemperature,controlstheelectricmotor,andreportsdiagnosticfaultstotheECM.The

ETVchangespositioninresponsetoECMsignals.

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