Code P0306 and P0449

2008 SATURN VUE
120,000 MILES • 3.6L • 6 CYL • 2WD • AUTOMATIC
Avatar
CARSTRUGGLER
  • MEMBER
  • 2 POSTS
P0306 indicates a misfire on cylinder six. I am having trouble finding an accurate diagram of the spark plug and coil setup, as O'Reilly's system indicates that a faulty spark plug or ignition coil is the most likely problem. If my personal research is correct, the plug and coil for cylinder six was replaced within the last twenty four months.
Oct 15, 2018 at 7:55 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
WILLIAM CRABTREE
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 95 POSTS
Hello,

I have attached a firing order diagram to help show which is cylinder six.

The codes you have included are as follows:

P0306 is a cylinder six misfire
P0449 is Evaporative Emission (EVAP) Vent Solenoid Control Circuit

Hope all this helps! If you need more information, please let me know!

William
Image (Click to enlarge)
Attached Media
Oct 15, 2018 at 7:16 PM
Advertisement
Avatar
CARSTRUGGLER
  • MEMBER
  • 2 POSTS
Can you tell me where the Evaporative Emission (EVAP) Vent Solenoid Control Circuit is located? I am a little confused as to location of the vent vs the purge.
Oct 17, 2018 at 2:59 PM
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,176 POSTS
The vent solenoid is under the car on the charcoal canister. Here is a diagrams to help you and a guide to show you how to raise the car up to change the valve:

https://www.2carpros.com/articles/jack-up-and-lift-your-car-safely

Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.

Cheers, Ken
Images (Click to enlarge)
Attached Media
Attached Media
Oct 20, 2018 at 12:10 PM