Diagnostic Aids

Improper fuel pressure can result in one of the following conditions:

• Cranks, But Won't Run
• Code 44
• Code 45
• Cuts Out Like An Ignition Problem
• Poor Fuel Economy And Loss Of Power
• Hesitation On Acceleration

Fig 1: Chart A-7 Flow Chart, Fuel System Diagnosis

Courtesy of GENERAL MOTORS CORP.

Fig 2: Chart A-7 Schematic, Fuel System Diagnosis

Courtesy of GENERAL MOTORS CORP.