33
Step Action Values Yes No
16
Inspect the following for heavy-end deposits:
Pressure Regulator. Inspect, clean and/or repair as neces-
sary (refer to Regulator Repair Instructions).
Are all actions complete?
Go to Step
20
NA
17
Replace the ECM.
Is the action complete?
Go to Step
20
NA
18
Replace the Shut Off Valve.
Is the action complete?
Go to Step
20
NA
19
System working correctly at this time. Vehicle may have
intermittent electrical connection conditions.
Return vehicle to original condition (but leave the diagnostic
equipment connected).
Start the engine and wiggle test the harness while observing
the DST Faults Screen and the pressure gauge readings.
Repair any conditions encountered.
Is the action complete?
Go to Step
20
NA
20
Clear any active or historic DTCs (DST Service or Faults
Screen).
Clear Adaptive from memory (DST Service Screen).
Return the vehicle to original condition.
Operate the vehicle under all load and driving conditions for
at least 10 minutes.
Park the vehicle with the engine running and connect the
DST to the vehicle’s DLC connector.
Open the DST software and switch to the Faults Screen.
Let the vehicle idle with no load for at least 30 seconds and
observe the Adaptive 1 fuel correction.
Did the Adaptive 1 fuel correction remain within the specified
values?
-15% to
+15%
Go to Step
21
Go to
Step 24
21
With engine still idling, apply a load with the hydraulic system
for at least 10 seconds and observe the Adaptive 1 value.
Did the Adaptive 1 fuel correction remain within the specified
values?
-15% to
+15%
Go to Step
22
Go to
Step 24
22
Raise the engine rpms to 75-90% of maximum full governed
speed with no load for at least 10 seconds and observe the
Adaptive 1 fuel correction.
Did the Adaptive 1 fuel correction remain within specified val-
ues?
-15% to
+15%
Go to Step
23
Go to
Step 24
23
With the engine still running at 75-90% of full governed
speed, apply a moderate load with the hydraulic system.
Observe the Adaptive 1 fuel correction.
Did the Adaptive 1 fuel correction remain within specified val-
ues?
-15% to
+15%
Go to Step
29
Go to
Step 24
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