Page 19 - Penske_Student Guide Book

Content
Low-Pressure Gauge and Low-
Pressure Fuel Pressure
Transducer
Low-Pressure Fuel Lines
Low-Pressure Coalescing Filter  Filters liquids and aerosols
Low-Pressure Solenoid Valve
Light-Duty Fuel Rail and Fuel
Injectors
Notes Content
 Low-pressure gauge displays
pressure of fuel on the way
to the engine
 Pressure transducer
communicates pressure to
engine control module
 Carry gas from the regulator
to the fuel rail (LD) or engine
(HD)
 Stainless steel or flexible
 Depends on manufacturer’s
choice
 Can be both on the same
vehicle
from gas
 Oil
 Water
 Also filters particulates
 Must be manually drained
daily
 Failure to service can result in
expensive component
failures
 Isolates engine from the fuel
system when engine is not
rotating
 Normally closed valve
 Opens when it senses engine
RPM
 Multi-port injection (MPI)
 Inject natural gas into the
engine ensuring optimal
engine performance
 Injector flow capacity is large
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