CEL P0455 Evap System- just Gas Cap?? | FerrariChat
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CEL P0455 Evap System- just Gas Cap??

Discussion in '360/430' started by 360Spider_Justin, Sep 9, 2014.

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  1. 360Spider_Justin

    360Spider_Justin Rookie

    Aug 29, 2014
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    Atlanta, Georgia
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    Justin
    #1 360Spider_Justin, Sep 9, 2014
    I've read many posts about this but need help! The CEL came on right before my emissions test. I reset code and passed emissions last week. After a 5 mile ride last night I got fuel and then the light came on. Bought a OBDII and it's P0455 the Evap system. Been reading all sort of valve issues and how difficult and expensive it could be to replace on a 2004 spider as the top has to come off.

    Seems like it only happens after I get fuel, but I tighten the cap really hard. Any ideas how to avoid this if it's the gas cap ? Vaseline? Flip the gasket?

    I just bought the car 2 weeks ago and would really like to avoid the Ferrari dealer if possible.

    Thanks all! I've posted 2 times already and I can't thank everyone enough.

    Justin
     
  2. English Rebel

    English Rebel Formula 3

    Aug 13, 2013
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    #2 English Rebel, Sep 10, 2014
    Try replacing the gas cap gasket. Might be deteriorated such that it leaks.
    Alan
     
  3. wahoowa

    wahoowa F1 World Champ
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    #3 wahoowa, Sep 10, 2014
    If, in fact, the roll over valves - my experience is to plan on around $3K
     
  4. Sled Driver

    Sled Driver Formula Junior

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    #4 Sled Driver, Sep 10, 2014
    Your logic is to "guess" what is wrong in lieu of having the dealer diagnose the actual problem?

    If it's a quick, easy fix the dealer will come to the same conclusion.

    If it's more complex do you want to do "shoot gun maintenance" & just start replacing parts, hoping to find & fix the problem?
     
  5. Skidkid

    Skidkid F1 Veteran
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    #5 Skidkid, Sep 10, 2014
    I think any new to you car will have several trips to the shop. That is if you want to get it sorted and working well. Most everyone ends up doing that dance, even with a very clean car.

    As noted many times, buying it is one thing, owning it is another.
     
  6. Rifledriver

    Rifledriver Three Time F1 World Champ

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    #6 Rifledriver, Sep 10, 2014
    An evap error is quite common in 360's yet out of all the cars we have repaired not one was gas cap related. Don't guess, have it diagnosed. It is not that hard for an experienced shop.

    Since your profile is blank it makes it hard to recommend you to someone. There are many good and bad shops and many good and bad dealers but we have no idea where you are.
     
  7. AD170

    AD170 Karting

    Jul 18, 2014
    79
    #7 AD170, Sep 10, 2014
    Didn't you just buy it from a "well known dealer"? I suspect that it was there all the time but since its a two trip DTC and the EVAP monitor takes time to complete, they either hid it from you or didn't catch it. I would contact that "well known dealer" and see if they will go 50/50 with you on the repair. As stated above, don't throw parts at it, smoke test it and see where the problem lies.
     
  8. 360Spider_Justin

    360Spider_Justin Rookie

    Aug 29, 2014
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    Justin
    #8 360Spider_Justin, Sep 10, 2014
    I did buy it from EuroCar in California. I'm concerned as well. I plan to get it checked out next week.

    I live in Atlanta north suburbs. Right near Ferrari Atlanta.
     
  9. Rifledriver

    Rifledriver Three Time F1 World Champ

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    #9 Rifledriver, Sep 10, 2014
    I'd bet it was there. A through PPI would have caught it.
     
  10. 360Spider_Justin

    360Spider_Justin Rookie

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    #10 360Spider_Justin, Sep 10, 2014
    Rifledriver. I'm based in Atlanta and live near Ferrari Atlanta. About 10 miles. Are you a mechanic / dealer? So out of all P0455 errors none are gas cap related?

    Thoughts?
     
  11. Rifledriver

    Rifledriver Three Time F1 World Champ

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    #11 Rifledriver, Sep 10, 2014
    Get it diagnosed. My crystal ball is not terribly reliable.
     
  12. 360Spider_Justin

    360Spider_Justin Rookie

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    Justin
    #12 360Spider_Justin, Sep 10, 2014
    I plan to do so; however, you mentioned that out of all prior episodes of experience, it was not gas cap related. That's interesting, as there are so many discussion threads pertaining to P0455 that are resolved due to gas cap issues.
     
  13. Rifledriver

    Rifledriver Three Time F1 World Champ

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    #13 Rifledriver, Sep 10, 2014
    Last edited: Sep 10, 2014
    There are a lot of BS threads here that keep those of us who work on them very amused.
    Ask any one of the extremely few professionals who still come here.


    I don't know any independent shops in the area but Thomas at Ferrari Atlanta is very good.

    If you really want a guess the fuel tanks in the Spiders were very poorly built and the receptacle in the top of the tank for the roll over valves is a very uneven stamping welded on the top. Asking a thin rubber seal to fill the gaps of that uneven surface was a fantasy. Combine that with the lousy plastic used to make the valves and you general find that the top needs to be removed to install all 4 new valves and the updated gaskets.

    If a through PPI had been done it would probably have shown that not all the monitors were set in the Motronic meaning someone reset the Check Engine Light before sale and during your ownership it reran the test and failed setting the CEL.
     
  14. 360Spider_Justin

    360Spider_Justin Rookie

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    #14 360Spider_Justin, Sep 10, 2014

    Rifledriver. Great info. Thanks man. I just called and spoke to Ferrari Atlanta. My old tenant was Tom Tedesco who ran sales a couple year ago. Great guy. I'll ask for Thomas going forward.

    Here is additional information that might help. I failed to mention that the rubber gasket with the plastic valve on the inside of my gas cap is loose. I can literally pull it out. With that information, does it make sense to replace the gas cap before taking it in, or do you still stand by your comment that it most likely isn't the gas cap.

    Thanks, Justin
     
  15. MPtolomey

    MPtolomey Formula Junior

    Jun 8, 2014
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    #15 MPtolomey, Sep 10, 2014
    Wasn't there a post a few weeks ago with someone having a similar issue with gas cap gasket?
     
  16. Rifledriver

    Rifledriver Three Time F1 World Champ

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    #16 Rifledriver, Sep 10, 2014
    They always fall out. If you get tired of it a little glue works fine.
     
  17. 360Spider_Justin

    360Spider_Justin Rookie

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    #17 360Spider_Justin, Sep 10, 2014
    Rifledriver you say that as if that won't cause an Evap Error? Won't a lose seal do so?
     

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