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Thread: New car to me, few oddities - not starting immediately, lumpy idle and slight miss on hard acceleration.

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  1. Re: New car to me, few oddities - not starting immediately, lumpy idle and slight miss on hard acceleration. 
    #11
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    MAF always buy genuine part you can exchange your old one at TPS PARTS
    eye for an eye means the whole world goes blind
     
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  2. Re: New car to me, few oddities - not starting immediately, lumpy idle and slight miss on hard acceleration. 
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    Yeah I thought that after reading last night.
    Presumably the one I have will still read OK, but just maybe not last as long? or is it potentially likely that its not going to read well enough for the engine to run well?
    I assumed that as HAAS have a formula 1 team it would be ok :-D
     
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  3. Re: New car to me, few oddities - not starting immediately, lumpy idle and slight miss on hard acceleration. 
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    It's been a few days with the new maf and I dont think it's cured the problem.
    Had it really bad today really leapfroggy in first stuck in traffic and missing quite bad, but fine on the motorway.

    I've read it could be the exhaust cam timing out, is that likely and can I adjust that using vcds?

    Anything else it could be?
    Seems worse almost when it's hot, don't seem to have the same problem when it's cold.

    Cheers

    Quote Originally Posted by carbonman View Post
    Yeah I thought that after reading last night.
    Presumably the one I have will still read OK, but just maybe not last as long? or is it potentially likely that its not going to read well enough for the engine to run well?
    I assumed that as HAAS have a formula 1 team it would be ok :-D
     
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  4. Re: New car to me, few oddities - not starting immediately, lumpy idle and slight miss on hard acceleration. 
    #14
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    when was the cam belt last changed ? check the torsion value in vcds engine group 4 should be 0° +/-0.5° also replace the fuel filter take the old one off empty the contents into a jar and see if any oil in fuel
    eye for an eye means the whole world goes blind
     
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  5. Re: New car to me, few oddities - not starting immediately, lumpy idle and slight miss on hard acceleration. 
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    Cheers for that.
    Odly enough the engine management light came in this morning showing a fault with the maf so I'm going to exchange the haas unit with a bosch one on Monday. I've also bought a new fuel filter too, so hopefully they will help.
    If not I'll start looking at other things like timing.
    Will keep you posted!
    Thanks for the help so far
     
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  6. Re: New car to me, few oddities - not starting immediately, lumpy idle and slight miss on hard acceleration. 
    #16
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    What’s the engine code on yours
    eye for an eye means the whole world goes blind
     
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  7. Re: New car to me, few oddities - not starting immediately, lumpy idle and slight miss on hard acceleration. 
    #17
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    Brd 039858
     
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  8. Re: New car to me, few oddities - not starting immediately, lumpy idle and slight miss on hard acceleration. 
    #18
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    eye for an eye means the whole world goes blind
     
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  9. Re: New car to me, few oddities - not starting immediately, lumpy idle and slight miss on hard acceleration. 
    #19
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    New genuine bosch maf on, no difference, next stop fuel filter...
     
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  10. Re: New car to me, few oddities - not starting immediately, lumpy idle and slight miss on hard acceleration. 
    #20
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    could also be your injector wiring harness breaking down.
     
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