Diagnostic Aids

Improper fuel system pressure can result in of the following problems:

CRANKS, BUT WON'T RUN.

• Code 44.
• Code 45.

CUTS OUT, MAY FEEL LIKE AN IGNITION PROBLEM.

• Poor fuel economy, loss of power.
• Hesitation.

Fig 1: Chart A7 - Electrical Schematic, Fuel System Diagnosis

Fig 2: Chart A7 - Fuel System Schematic

Fig 3: Flow Chart A7 (1 of 2), Fuel System Diagnosis

Fig 4: Flow Chart A7 (1 of 2), Fuel System Diagnosis