× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P1491 Diagnostic Trouble Code Discussion for November 2004

EVAP Vacuum Cut Valve/Bypass Circuit Malfunction


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P1491
Help Request Posted
2002 Dodge Ram 1500 SLT 5.9L No Start VIN: 1D7HA16Z62
... ago for the same no start condition. When we get it to the shop it starts. It cranks OK, has good fuel pressure but doesnít seem to have good spark. When you let off the key it will run backwards. Always seems to happen when itís raining but Iím not sure t...
November 30, 2004