Section 05 ENGINE MANAGEMENT (DI)
Subsection 04 (DIAGNOSTIC PROCEDURES)
SMR2000-052-05-04A.FM 05-04-1
DIAGNOSTIC PROCEDURES 0
GENERAL
Here is the basic order suggested to diagnose a
suspected fuel injection related problem:
– Check the chart in TROUBLESHOOTING sec-
tion to have an overview of problems and sug-
gested solutions.
– Check if there is a MAINT signal reported by the
vehicle information center. If so, use the VCK
(Vehicle Communication Kit) and look for fault
codes to diagnose the trouble.
– Check all fuses.
– Check air/fuel rail pressure.
– Check spark plugs condition.
– Check RAVE valves if stuck.
– Check fuel pump pressure.
– Check air compressor pressure.
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