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Code P0306 and P0449

Tiny
CARSTRUGGLER
  • MEMBER
  • 2008 SATURN VUE
  • 3.6L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
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.
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Monday, October 15th, 2018 AT 7:55 AM

3 Replies

Tiny
WILLIAM CRABTREE
  • MECHANIC
  • 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
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Monday, October 15th, 2018 AT 7:16 PM
Tiny
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.
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Wednesday, October 17th, 2018 AT 2:59 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 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
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Saturday, October 20th, 2018 AT 12:10 PM

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