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Thread: The Story of SKETCHI - 05 ZHP Sedan

  1. #1571
    Join Date
    Nov 2012
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    Performed an oil change with a Liqui Moly 5w-30 kit from fcpeuro. Also replaced the front sway bar links (lemforder) since the boots were torn. Didn't get the time to replace the rear links or rebuild the parking brake system. That's next week's project.



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    His - 2004 Imola Red / Alcantara 330i | 6MT | ZHP |

    Her's - 2005 Black Sapphire Metallic / Black Leather 330i | 6MT | ZHP |

  2. #1572
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    The car recently has developed 2 Lean codes for Bank 1 and Bank 2.

    I hooked up the smoke tester and found 1 small leak from the vacuum plug on the backside of the intake manifold. Replaced that cap and reset the codes.

    Ordered a new fuel filter for preventative maintenance. However my hunch is that the OE MAF sensor is on its way out since it is still original to the car.

    First post of Thread update with Maintenance items/Mileage
    Last edited by Vas; 10-29-2019 at 06:16 AM.

    His - 2004 Imola Red / Alcantara 330i | 6MT | ZHP |

    Her's - 2005 Black Sapphire Metallic / Black Leather 330i | 6MT | ZHP |

  3. #1573
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    Nov 2012
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    Kayser fuel filter installed at 189,970

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    His - 2004 Imola Red / Alcantara 330i | 6MT | ZHP |

    Her's - 2005 Black Sapphire Metallic / Black Leather 330i | 6MT | ZHP |

  4. #1574
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    Jun 2011
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  5. #1575
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    Quote Originally Posted by ELCID86 View Post
    Codes?
    P0171 and P0174. Bank 1 and bank 2 lean.

    Decided to swap maf sensors between cars just to see what the short and long fuel trims look like and behold they went down with a good working maf sensor. Will drive it longer and see if the codes come back but my guess the original sensor is either dirty or decided to not read correctly at 190k.

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    His - 2004 Imola Red / Alcantara 330i | 6MT | ZHP |

    Her's - 2005 Black Sapphire Metallic / Black Leather 330i | 6MT | ZHP |

  6. #1576
    Join Date
    Oct 2015
    Location
    Boston, MA
    Posts
    923
    You're getting there Vas - 200k is very close

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  7. #1577
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    Quote Originally Posted by RUS_ZHP View Post
    You're getting there Vas - 200k is very close

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    Getting there.

    Screenshot below of the current fuel trims. The long term trims should equal out over a period of time but they are much lower now.



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    His - 2004 Imola Red / Alcantara 330i | 6MT | ZHP |

    Her's - 2005 Black Sapphire Metallic / Black Leather 330i | 6MT | ZHP |

  8. #1578
    Join Date
    Oct 2015
    Location
    Boston, MA
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    Quote Originally Posted by Vas View Post
    Getting there.

    Screenshot below of the current fuel trims. The long term trims should equal out over a period of time but they are much lower now.



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    What is acceptable % should be?

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  9. #1579
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    Quote Originally Posted by RUS_ZHP View Post
    What is acceptable % should be?

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    The numbers should be no greater then 10% and the total fuel trim numbers should be no more then 10% when they are added. The fuel trims should be monitored at idle, 1500 rpm and 2500 rpm. The screenshot above was taken at 2500 rpm.

    If the numbers are greater then 10% in the positive or negative direction, the DME is compensating for more then just normal wear and tear on the engine.

    Also something to consider is that when the numbers reach 25% in either direction the check engine light will come on for either system too lean or rich.

    His - 2004 Imola Red / Alcantara 330i | 6MT | ZHP |

    Her's - 2005 Black Sapphire Metallic / Black Leather 330i | 6MT | ZHP |

  10. #1580
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    Oct 2015
    Location
    Boston, MA
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    Thanks Vas. This is educational for me.

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