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code P0455
I have error code P0455 on my Sentra 2006 1.8 SE. I replaced gas cap with genuin Nissan cap. I got the same code. I did smoke test at Firestone they did not find problrm and told that problem is in the cap. After they erased message I drove 300 miles without error light, but after I added gas to my tank I got this message again. In addition my milage is 3 -4 miles worse than it was before.
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#2
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thats not a gas cap problem its the EVAP Canister Purge Volume Control Solenoid here is the link to the code description Nissan OBD-II Trouble Code P0445 also check out the service manual and and download engine control (free to download from this site)and search for the code and it should have a description and pics for u Knowledgebase - 2006 Sentra - Nissanhelp.com
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Quote:
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Hybrid and GTR certified EV certified ASE Master Certified. |
#4
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purge valve...
your valve has a spring inside of it.... your carbon canister is where the fuel vapors from your gas tank go to and are sent back into the engine controlled with your computer..... the valve spring might have a tiny rock or dust inside of it causing it to get stuck and send the malfunction..... not sure if the sentra system is the same as xterra or pathfinder or frontier....
valve can be removed very carefully and cleaned and checked with 2 wires and a 12volt battery... the valve should have 2 notches that need to be in the exact position for you to be able to pull valve off... if you try to force it, it will begin to eat the plastic and your valve will not lock in place correctly causing an air leak..... note: my mpg dropped to 11mpg..... after 3 weeks of checking things i found out that i had disconected my battery and began to drive my truck as usual... i did not know that the computer was going through a re-learn process for your air/fuel mixture and needed to be driven at 1000 to 1500 rpm's and then to 60 mph for 15 to 20 minutes while computer re-learned my driving habits.... i believe that your drop in mpg might have been due to your battery being disconected...... the purge valve might cause you to loose some mpg since the vapors are not being mixed with your fuel in the process of igniting fuel/air mixture.... i would say that if your under warranty or the problem might be a re-call (call dealer and ask) then take to dealer... if not.... removing the valve and looking to see if the spring is stuck twisted.. and or if you see dirt or dust.. might just mean that you can clean it and replace it.. good luck |
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code, p0455 |
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