Navistar MaxxForce 9

DIAGNOSTICMANUAL
ExhaustBackPressureValve
(EBPV)
AvalvethatregulatestheamountofairpressureappliedtotheEBPVpneumaticactuator.
Exhaustbrake
Abrakedeviceusingengineexhaustbackpressureasaretardingmedium.
ExhaustGasRecirculation
(EGR)
Asystemusedtorecirculateaportionoftheexhaustgasesintothepowercylinderinordertoreduce
oxidesofnitrogen.
ExhaustGasT emperature
(EGT)
Thetemperatureofexhaustgases.
ExhaustGasRecirculation
Temperature(EGRT)sensor
AthermistorsensorthatdetectstheexhaustgastemperatureenteringtheEGRcooler.
ExhaustGasRecirculation
(EGR)valve
TheEGRVcontrolstheowofexhaustgasestotheintakemanifold.TheEGRVisintegratedwithan
EGRPosition(EGRP)sensor.
Exhaustmanifold
Exhaustgasesowthroughtheexhaustmanifoldtotheturbochargerexhaustinletandaredirectedto
theEGRcooler.
ExhaustManifoldPressure
(EMP)sensor
Avariablecapacitancesensorusedtoindicateairpressureintheexhaustmanifold.
ExhaustManifoldT emperature
(EMT)sensor
Athermistorsensorusedtoindicateairtemperatureintheexhaustmanifold.
FailureModeIndicator(FMI)
Identiesthefaultorconditioneffectingtheindividualcomponent.
FuelDeliveryPressure(FDP)
sensor
Avariablecapacitancesensorthatmonitorsfuelpressurecomingfromthefueltankandsendsasignal
totheECM.
Fuelpressure
Theforcefuelexertsonthefuelsystemasitispumpedthroughthefuelsystem.
FuelPressureControlValve
(FPCV)
TheFPCVcontrolsthefuelpressuretothefuelrailsandiscontrolledbytheECM.FPCVcontroldepends
onfuelpressureandfueltemperature.
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