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Diagnostic Aids

Improper fuel pressure may cause the following: engine cranks but will not start, engine cuts out, hesitation, loss of power, and Codes 44 and 45 may be set.

Fig 1: Chart A-7, Fuel System Pressure Test (1 of 2)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Chart A-7, Fuel System Pressure Test (2 of 2)

Courtesy of GENERAL MOTORS CORP.