2002 e46 compact 316ti se fault code p1341 - Page 3

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Thread: 2002 e46 compact 316ti se fault code p1341

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  1.  
    #21
    Bimmer Fan
    Car Details
    BMWAndy's Car Details
    Model of Car:
    316ti Compact
    Year of Manufacture:
    2002
    Transmission Type:
    Manual
    Car Body Type:
    Hatchback

    Join Date
    Oct 2011
    Location
    Alcester
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    Good point ... I did try the oil cap removal to see if idling changes to test for a vacuum leak and all was good with that as the idling did indeed change. I know it's not a foolproof method though!
     
     

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  3.  
    #22
    Bimmer Fan
    Car Details
    BMWAndy's Car Details
    Model of Car:
    316ti Compact
    Year of Manufacture:
    2002
    Transmission Type:
    Manual
    Car Body Type:
    Hatchback

    Join Date
    Oct 2011
    Location
    Alcester
    Posts
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    0
    Thanked 2 Times in 2 Posts
    As you correctly said there must be an air leak as I fitted the new MAF and it's reverted back to misfire status. Booked it in for a leak test next week so will let you know!
     
     

  4.  
    #23
    Bimmer Fan
    Car Details
    BMWAndy's Car Details
    Model of Car:
    316ti Compact
    Year of Manufacture:
    2002
    Transmission Type:
    Manual
    Car Body Type:
    Hatchback

    Join Date
    Oct 2011
    Location
    Alcester
    Posts
    10
    Thanks
    0
    Thanked 2 Times in 2 Posts
    Quote Originally Posted by TheEnd View Post
    That can only show an air metering problem, it might not be the MAF yet, but an airleak somewhere making cylinders leaner than they need to be to sustain ignition.

    See what it is like with the new MAF, and if the problem remains, start looking for perished hoses.
    Right I'm now a little lost with this ... garage did a leak down test with smoke and there was no leak at all. Then tried a brand new MAF just in case the 2nd hand one was faulty. With this new one on the car ran rougher than ever and wouldn't even rev.

    Anyone got any ideas? ... all I can think of is a wiring short between the MAF and the ECU but this could be very tricky to locate I think.
     
     

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