No | GO to A2 |
|---|
A2 CHECK THE SYSTEM FOR ANY EVAP (EVAPORATIVE EMISSION) DTC'S
Connect the scan tool. Check the system for any EVAP DTC's.
Are any DTC's present?
Yes | Refer to Powertrain Control/Emissions Diagnosis (PC/ED) manual. |
|---|---|
No | GO to A3 |
A3 MONITOR THE FTP WHILE FILLING THE FUEL TANK
NOTE: During normal fuel fill the Fuel Tank Pressure (FTP) Sensor value starts at 2.6 volts and will increase .3 to .7 of a volt from its starting point.
Monitor the Fuel Tank Pressure (FTP) reference value while filling the fuel tank. Refer to the Reference Values in the Powertrain Control/Emissions Diagnosis (PC/ED) manual. Refer to Powertrain Control/Emissions Diagnosis (PC/ED) manual.
Is FTP within specification?
Yes | GO to A5 |
|---|---|
No | GO to A4 |
A4 MONITOR THE FTP WHILE FILLING THE FUEL TANK WITH THE EVAP SYSTEM DISCONNECTED
Disconnect the fuel tank-to-EVAP canister quick connect coupling at the EVAP canister.
NOTE: During normal fuel fill the Fuel Tank Pressure (FTP) Sensor value starts at 2.6 volts and will increase .3 to .7 of a volt from its starting point.
Monitor the FTP reference value while filling the fuel tank. Refer to Powertrain Control/Emissions Diagnosis (PC/ED) manual.
Is FTP within specification?
Yes | INSPECT the EVAP system for blockage or restrictions. REPAIR the blockage or restriction. If the blockage or restriction cannot be repaired, INSTALL new EVAP system components. |
|---|---|
No | GO to A5 |
A5 CHECK THE FUEL TANK FILLER PIPE ASSEMBLY FOR BLOCKAGE OR RESTRICTION
Remove the fuel tank filler pipe assembly. REFER to: Fuel Tank Filler Pipe (310-01C Fuel Tank and Lines - 5.0L 32V Ti-VCT, Removal and Installation). Inspect the fuel tank filler pipe and fuel tank filler pipe vent tube (if equipped) for a blockage or restriction.
Is the fuel tank filler pipe or fuel tank filler pipe vent tube (if equipped) blocked or restricted?
Yes | If possible, REPAIR the blockage or restriction. If the blockage or restriction cannot be repaired, INSTALL a new fuel tank filler pipe or fuel tank filler pipe vent tube. |
|---|
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.