LaCrosse V6-3.8L VIN 2 (2005)
Steps 6 - 8
The numbers below refer to the step numbers on the diagnostic table.
3. The engine coolant temperature (ECT) must be below the operating temperature in order to avoid irregular fuel pressure readings due to hot soak
fuel boiling.
4. This step tests the ability of the fuel system to produce pressure within a specified range necessary for the correct engine performance.
5. This step tests the ability of the fuel system to maintain fuel pressure after the pump stops.
6. If the pressure drop value for each fuel injector is within 20 kPa (3 psi) of the average pressure drop value, the fuel injectors are flowing properly.
