Test Description
WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2002 Saturn Vue, 2002 Pontiac Montana, 2002 Pontiac Aztek, 2002 Oldsmobile Silhouette, and 2002 Oldsmobile Bravada. However, it is still accessible from the selected car via links, so may be relevant.
The numbers below refer to step numbers in diagnostic procedure.
- 3
Fuel pressure should be within specified range. If fuel pressure is not within specified range, see FUEL SYSTEM DIAGNOSIS (BI-FUEL & CNG) . - 5
If pressure drop value for each fuel injector is within 2 psi (14 kPa) of average pressure drop value, fuel injectors are flowing properly. Calculate pressure drop value for each fuel injector by subtracting second pressure reading from first pressure reading.