Navistar N9, Руководство по диагностике

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1 DIAGNOSTIC TROUBLESHOOTING PROCEDURES 31
Step 3 Record snapshot of hard to start related Key-On Engine-Off (KOEO) data. Decision
Perform Record Snapshot of KOEO Data (page 2113).
Are battery voltage, Fuel Delivery Pressure (FDP), Injection Control Pressure
(ICP), and engine temperature sensor values within Key-On Engine-Off
specifications?
Yes: Go to Step 4.
No, battery voltage
out of specification:
Repair battery, starting
system, charging system,
or ECM PWR circuit
problem. After repairs
are complete, retest for
original problem.
No, FDP out of
specification: Go to
8.1 - Low Fuel Delivery
Pressure (page 120).
No, ICP out of
specification: Go to
SPN 164 FMI 0 Fault
Code Diagnostics (page
1287).
No, one or more engine
temperature sensors
Not within 20°F (7°C)
of others after cold
soak: Go to Fault
Code Diagnostics (page
142) for sensor out of
specification.
Step 4 Record snapshot of engine cranking data. Decision
Perform Engine Cranking Test (page 2172).
Are Switch Battery (SWBAT), Engine Speed (rpm), ICP, IPR, FDP, EGR, Turbocharger 1
Turbine Outlet Pressure (TC1TOP), EBP, and DPFDP within Engine cranking specification?
Yes: Go to Step 5 (page
32).
No: SWBAT or Engine
Speed (rpm) out of
specification: Go to 2.1
Engine Cranks Slow or
Does Not Crank (page
49).
No: ICP or IPR out of
specification: Go to CPA