F 150 Super Crew 2WD V8-5.4L Prop SOHC VIN Z (2003)
P1640 - P1644: Testing and Inspection
P1640
Continuous Memory Code P1640 ......................................................................................................................................................................... See Note 9
Application ................................................................................................................................................................................................... Bi-Fuel Vehicles
NOTE 9:
See Bi-Fuel System Testing for instructions on how to retrieve DTC's from Secondary Module. See: Powertrain Management/Computers and
Control Systems/Testing and Inspection/Initial Inspection and Diagnostic Overview/Bi-Fuel Models (Bi-Fuel/CNG System)
See P1640 Diagnostic Trouble Code (DTC) Descriptions for additional information. See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Diagnostic Trouble Code Descriptions/Standard Models (Non Bi-Fuel) (Base Gasoline)
