NGC Powertrain Verification Test Ver - 6

NGC POWERTRAIN VERIFICATION TEST VER - 6

For a complete wiring diagram Refer to Diagrams/Electrical.

Diagnostic Test

1.NGC POWERTRAIN VERIFICATION TEST VER - 6

1. Install the Miller Tool #8404 Evaporative Emission Leak Detector (EELD) according to the instructions in the previous DTC table.

2. Set the smoke/air control switch to AIR.

3. Insert the tester's AIR supply tip (clear hose) into the appropriate calibration orifice on the tester's control panel (based on DTC leak size).

4. Press the remote smoke/air start button.

5. Position the red flag on the air flow meter so it is aligned with the indicator ball.

6. When the calibration is complete, release the remote button. The EELD flow meter is now calibrated in liters per minute to the size of leak indicated by the DTC set in the PCM.

7. Install the service port adapter #8404-14 on the vehicle's service port.

8. Connect the Air supply hose from the EELD to the vehicle.

9. Press the remote button to activate AIR flow.

NOTE: 10. Larger volume fuel tanks, lower fuel levels or if the vehicle is equipped with a Flow Management Valve may indicate high flow and will require 4 to 5 minutes to fill.

11. Compare the flow meter indicator ball reading to the red flag.

12. ABOVE the red flag indicates a leak present.

13. BELOW the red flag indicates a sealed system.

NOTE: If this vehicle is equipped with an Electronic Throttle Control system, and the APP Sensors, PCM, or Throttle Body Assembly have been replaced, use the scan tool to perform the ETC RELEARN function.

15. If the indicator ball shows a leak present, perform the smoke test indicated in the previous test and identify the leak and repair. Perform this verification test when the repair is complete.

NOTE: The PCM can detect and compensate for variances in the engine and its components. To learn these variations, the PCM uses the input of the actual crankshaft rotation pattern and ideal crankshaft rotation pattern that has been calibrated into the PCM. The PCM then compares the two patterns. The variation between the two values is the Adaptive Numerator. If the Adaptive Numerator is not learned by the PCM, the misfire monitor will not run and the Multi-Cylinder Displacement System (MDS) will not operate. Without MDS operation, the customer will experience decreased fuel economy. If the customer experiences decrease fuel economy or after any repair use the scan tool to ensure that the Adaptive Numerator is learned.

Did the indicator ball indicate the a leak is present?

Yes

- Repeat the DTC test to identify the leak and repair.

No

- Repair is complete.