Isuzu N 2008 Series Workshop Manual page 39

1A-36 Engine Control System (4JJ1)
Step
1. Review the following symptoms.
2. Refer to the applicable symptom diagnostic
table:
• Hard Start
• Rough, Unstable, or Incorrect Idle and
Stalling
• High Idle Speed
• Cuts Out
• Surges
16
• Lack
Sponginess
• Hesitation, Sag, Stumble
• Abnormal Combustion Noise
• Poor Fuel Economy
• Excessive Smoke (Black Smoke)
• Excessive Smoke (White Smoke)
Did you find and correct the condition?
Action
of Power, Sluggishness,
Value(s)
—
or
Yes
Go to Intermittent
System OK Conditions
No