1999 E46 318i se fault code p0171. - Page 10

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    #91
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    Quote Originally Posted by lee_h View Post
    That's why you stick something in to make it come out, why are you asking questions If you have already had advice off a specialist, I personally would want it out
    I just wished to ask so dont damage my car. I shall ask the garage in the morning if he could take the oil out and take it out.
     
     

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    #92
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    Guys had MAF replaced. Bosch genuine. Car seems smooth and quicker, slight delay in surge of power from previous one but smooth delivery of power, less grunt throughout gears. What can you advise?

    Does it need tuning? Reset adaptive?
    Why would a new sensor take time on acceleration for power? Or hesistant?

    Did 100 miles on M1 last night, at one point foot flat on pedal then took delay before pier surge kicked in? Seems powerful once there but took longer than previous one in getting there

    Please help!
     
     

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    #93
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    Quote Originally Posted by VJPo2 View Post
    Guys had MAF replaced. Bosch genuine. Car seems smooth and quicker, slight delay in surge of power from previous one but smooth delivery of power, less grunt throughout gears. What can you advise?

    Does it need tuning? Reset adaptive?
    Why would a new sensor take time on acceleration for power? Or hesistant?

    Did 100 miles on M1 last night, at one point foot flat on pedal then took delay before pier surge kicked in? Seems powerful once there but took longer than previous one in getting there

    Please help!
    Reset the adaptions
     
     

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    #94
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    Ok thanks. What if it already has been reset? What shall I do?
     
     

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    #95
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    Quote Originally Posted by lee_h View Post
    Reset the adaptions
    Ok thanks. What if it already has been reset? What shall I do?

    Also;

    Seems to be using more fuel, why is this?

    Average 31 MPG on dash at 70-100MPH ish

    Is a difference after replacing MAF sensor.

    Is this a common issue or shall resetting adaptations resolve this?

    I am concerned what other issues it may need to rectify

    Please let me know to do cheap guys

    Costing me a fortune already since the light started to appear.
     
     

  7.  
    #96
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    Is the check engine light staying off? Either way, reset the adaptions. It doesn't matter if it's been done already it'll need done again.
    BMW 318i se.
    K&N panel filter.
    Cybox SS back box.

    Mild mannered super hero by day... Musician by night...
     
     

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    #97
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    Quote Originally Posted by dieselfitter251 View Post
    Is the check engine light staying off?
    Yes, so far. no sign of light after 230 miles run. mixed roads
     
     

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    #98
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    I'd say you're pretty much sorted. If I'm cruising above 75 I'm lucky to get anywhere near 35mpg, however if I keep it between 65 & 70 I can make 40mpg.
    Now that you've solved the 171 fault code problem I'd go with a good service and keep an eye on the fuel consumption.
    BMW 318i se.
    K&N panel filter.
    Cybox SS back box.

    Mild mannered super hero by day... Musician by night...
     
     

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    #99
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    Quote Originally Posted by dieselfitter251 View Post
    I'd say you're pretty much sorted. If I'm cruising above 75 I'm lucky to get anywhere near 35mpg, however if I keep it between 65 & 70 I can make 40mpg.
    Now that you've solved the 171 fault code problem I'd go with a good service and keep an eye on the fuel consumption.
    Thanks, It seems hesitant on power so local garage where had MAF fitted asked me to bring it in to check any leaks etc, also reset adaptive. may help. I dont think it was reset at the time of fitting, as he's brother did it so may not be aware (don't know really) all I can do is ask. He said bring it in and he'll check it out further. worth having a final check then book in for service at time its needed to be. think air filter will make a change?

    Its strange I used to idle funny but gave more MPG before new MAF. I would have thought its the other way around?

    Update; Later this eve noticed a little hissing in 4th and 5th only after 4k rev's!
    Last edited by VJPo2; 08-10-2012 at 20:44.
     
     

  11.  
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    Quote Originally Posted by VJPo2 View Post
    Thanks, It seems hesitant on power so local garage where had MAF fitted asked me to bring it in to check any leaks etc, also reset adaptive. may help. I dont think it was reset at the time of fitting, as he's brother did it so may not be aware (don't know really) all I can do is ask. He said bring it in and he'll check it out further. worth having a final check then book in for service at time its needed to be. think air filter will make a change?

    Its strange I used to idle funny but gave more MPG before new MAF. I would have thought its the other way around?

    Update; Later this eve noticed a little hissing in 4th and 5th only after 4k rev's!
    If your hearing hissing in 5th over 4k rpm it's probably the wind as your doing about 85! A new air filter will make a huge difference. Do the service yourself, get a K&N panel filter aaaaand, you'll save a load of money and get to know your car a bit better, the M43 is such an easy engine to work on. Buy a Haynes manual and get on with it.

    Interested to see if your engine light stays off and the MAF sensor option from ECP is a way better option.

    C.
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    Mild mannered super hero by day... Musician by night...
     
     

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