Emissions - MIL ON/DTC's P0442/P0455/P0456/P1446

Classification:
EC07-006

Reference:
NTB07-058

Date:
September 6, 2007

2005 - 2007 XTERRA;
MIL "ON" WITH DTC P04421 P04551 P0456 / P1446

APPLIED VEHICLES:
2005-2007 Xterra (N50)

IF YOU CONFIRM

A MIL "ON" with one or more of the following DTC(S) stored:

^ P0442 / P04551 P0456 / P1446 AND

^ EVAP Vent Control S/V is stuck open or will not seal when operated/closed.

ACTIONS

1. Replace the EVAP Vent Control S/V.

2. Install the Filter Kit (refer to the Service Procedure in this bulletin).

3. Clear any DTCs stored in the ECM.

IMPORTANT:
The purpose of "ACTIONS" (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire Service Procedure (starting on page 3) as it contains information that is essential to successfully completing this repair.





PARTS INFORMATION





CLAIMS INFORMATION

SERVICE PROCEDURE

Replace Vent Control Valve

1. Replace the EVAP Vent Control S/V.

^ Refer to section EC in the Service Manual for replacement information.

Install Filter Kit

1. Remove the spare tire.





2. Remove the EVAP canister mounting bolt (see Figure 1).

^ The canister will drop about 3 inches which will give you working room at the top.

3. Disconnect the vent hose (see Figure 1).





4. Reach above the EVAP canister and disconnect the vent hose at the vent control valve and remove the hose (see Figure 2).

Twisting the hose at the opposite end will help loosen it at the vent control valve.








5. Cut out the template and place it on the frame rail as shown in Figure 3.

^ Make sure the template is aligned (straight) with the frame rail.

6. Center punch and drill a 13/32 (10 mm) hole at the location shown.

7. Prep the hole you just drilled as follows:

a. Remove burs from the edge with a file or sandpaper.

b. Clean the hole with solvent and allow to completely dry.

c. Apply / cover all bare metal with Zinc Rich primer (see Parts Information for Zinc Rich primer).

d. Alloy primer to dry-approximately 1 hour.

8. Prepare bracket for installation as follows:





a. Assemble the collapsible nut, spacer nut, and bolt as shown.

b. Finger tighten the assembly in Figure 4.





c. Install / push the nut and bolt assembly into the bracket as shown in Figure 5.





9. Take note of which hole will be used for the nut and which hole will be used for the bracket tab.





10. Install the bracket on the frame rail.

NOTE:
The collapsible nut will be a tight fit and may require tapping with a hammer to get it all the way in.

11. Torque the bolt to:

11.0 N.m (1.1 Kg-m, 96 in-lb)

NOTE:
Use a 13mm open end wrench to hold the spacer nut while tightening the bolt.





12. Assemble the hoses onto the filter as shown.

Pay attention to the position of paint marks on the hose ends (paint marks face UP).





13. Attach the Filter to the bracket and connect the hoses as shown in Figure 9. Reach above the EVAP canister to connect the vent hose to the vent control valve.

14. Coat/spray the bracket bolt and the frame around the bolt with Nissan Bitumen Wax (P/N 999MP-9G001P).

15. Reinstall the EVAP canister mounting bolt.

16. Clear any DTCs stored in the ECM.





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