Emissions - MIL ON/Multiple EVAP DTC's/Stalls/Rough Idle
ENGINEEG036-06
June 9, 2006
Title:
FUEL IN EVAP SYSTEM
Models:
'06 Avalon & '06 - '07 Camry (NAP)
Introduction
Some 2006 model year Avalon and 2006 - 2007 model year Camry vehicles may display one of the following complaints as a result of fuel entering the EVAP system through a damaged vent hose inside the fuel tank:
^ Intermittent stalling at idle when at operating temperature.
^ Intermittent rough idle when at operating temperature.
^ M.I.L. "ON" with at least one of the DTCs stored as shown.
Production changes have been implemented to prevent this condition from occurring.
Applicable Vehicles:
^ 2006 model year Avalon vehicles produced BEFORE the Production Change Effective VIN shown in this TSB.
^ 2006 model year Camry (North American produced) vehicles equipped with Federal Specification Emission systems and produced at TMMK plant No. 1.
^ 2007 model year Camry (North American produced) vehicles produced at TMMK plant No. 1 BEFORE the Production Change Effective VINs shown in this TSB.
Warranty Information
Applicable Warranty:
^ This repair is covered under the Toyota Federal Emissions Warranty. This warranty is in effect for 36 months or 36,000 miles, whichever occurs first, from the vehicle's in-service date. For California specification vehicles sold, registered, and operated in California, Maine, Massachusetts, and Vermont, this repair is covered under the California Emission Warranty, which is 36 months or 50,000 miles, whichever occurs first, from the vehicle's in-service date.
^ The charcoal canister is covered under the California Emission Warranty. This warranty is in effect for 84 months or 70,000 miles, whichever occurs first, from the vehicle's in-service date.
* Warranty application is limited to correction of a problem based upon a customer's specific complaint.
Production Change Information
Parts Information
Required SSTs
Required Tools & Material
Repair Procedure
1. Duplicate customer complaint (stalling or rough idle) or confirm if EVAP system DTCs are stored using the Diagnostic Tester.
2. Confirm if condition (stalling or rough idle) occurs when Purge VSV is turned "ON" with engine running at idle.
3. Check for fuel in the EVAP system by disconnecting the vent line from the charcoal canister at the trap filter.
Is liquid fuel present in the EVAP system?
^ If YES - Go to step 4.
^ If NO - This TSB does NOT apply. Continue diagnostics per the Repair Manual.
4. Remove the fuel tank assembly and the charcoal canister assembly.
^ Refer to the Technical Information System (TIS), applicable model and model year Repair Manual shown.
5. Drain all remaining fuel in the EVAP system lines (including the trap filter assembly).
6. Install the NEW fuel tank assembly and the NEW charcoal canister assembly.