Skylark V6-3100 3.1L VIN M SFI (1996)
8.
Start and idle the engine until it stalls, due to lack of fuel. This should take approximately 15-20 minutes.
9.
Disconnect J 35800-A from the fuel rail.
10.
Reconnect the vehicle fuel pump relay and oil pressure switch connector, if equipped.
11.
Reconnect the vacuum line to the fuel pressure regulator.
12.
Start and idle the vehicle for an additional 2 minutes to ensure residual injector cleaner is flushed from the fuel rail and fuel lines.
13.
Repeat Steps 1-5 of the Injector Balance Test, and record the fuel pressure drop from each injector.
14.
Subtract the lowest fuel pressure drop from the highest fuel pressure drop. If the value is 15 kPa (2 psi) or less, no additional action is required. If
the value is greater than 15 kPa (2 psi), replace the injector assembly with the lowest fuel pressure drop. Follow injector replacement procedures
outlined in the appropriate Service Information manual for the vehicle.
15.
Road test the vehicle to verify that the customer concern has been corrected.
