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  1. #21
    Join Date
    Mar 2013
    Location
    Anchorage, Alaska
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    577

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    Quote Originally Posted by hoonk View Post
    I am sympathetic, sometimes problems are difficult to diagnose.
    . . . even more difficult for someone like me that is not as technically experienced like you.

    Quote Originally Posted by hoonk View Post
    Yes, you should scan the car every time you have a problem. To see what codes (if any) come back.
    I think I need a newer scan, been a while.

    Thanks

  2. #22
    Join Date
    Sep 2002
    Location
    Belgium
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    2,404

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    When you turn the key before trying to start the engine, do you then hear the fuel pump running?
    If the car stalls while driving, perhaps the fuel pump relay fails. I think it is possible to swap it with
    a relay that isn't critical.
    144 GL (1974)--->244 GL (1982)--->940 GLE 2.3i (1992)--->XC70 2.5T (2004)--->XC90 T5 (2018)

  3. #23
    Join Date
    Mar 2013
    Location
    Anchorage, Alaska
    Posts
    577

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    Quote Originally Posted by Willy View Post
    When you turn the key before trying to start the engine, do you then hear the fuel pump running?
    If the car stalls while driving, perhaps the fuel pump relay fails. I think it is possible to swap it with
    a relay that isn't critical.
    Are my supposed to hear it running?
    Don't think this model has a Fuel Pump Relay. Could not find one on parts store or in the owner's manual.

  4. #24
    Join Date
    Mar 2013
    Location
    Anchorage, Alaska
    Posts
    577

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    I just scanned the car.
    First off, the starting fume is really stinky. Don't know how to explain it, it's just nasty.
    In the scans, any light issue would be from all the LEDs I put in the car (low voltage).
    Every interior bulb now has LEDs. Any audio issue would be from not having connection
    to the steering wheel controls after installing an after market stereo in the car.

    Before I scanned, the car started for about ten seconds and turned off, then started this way:
    https://drive.google.com/file/d/1ULa...YAGsk77PK/view

    I have a 10/27/19 scan and another one showed, I believe the current (11/19/19) scan.
    I just did a simple scan. I was just cold for some reason, though I was well wrapped up.
    My body was not just too tired to take the warm 31F, and I have been tired already. Being
    a very busy day for me. So, all I did were initial scanning.

    Click image for larger version. 

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  5. #25
    Join Date
    Feb 2010
    Location
    Virginia Beach
    Posts
    4,054

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    Fuel trim maxed out. O2 sensor out of range. Stinky exhaust. Doesnít start or run right.

    I think youíve got a vacuum leak.

    Cracked or mispositioned pipe or coupling between the MAF and the ETM.

    Is it possible that the pipe to the ETM was damaged when that was replaced?

    Thatís where I would start.

    A fine tooth comb. Flashlight. Mirror...

    Hereís the intake pipe on my daughterís BMW X3. Looked fine until I took it off. Ran poorly, though.

    Click image for larger version. 

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    Last edited by Astro14; 11-20-2019 at 11:35 AM.
    Current Fleet:
    2016 Tundra Crewmax 4WD 1794
    2005 MB S600 (114K, Michelin AS3+, LiquiMoly 0W40)
    2005 MB SL600 (50K, Michelin AS4, Mobil 1 0W40)
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    2002 V70-XC (275K, HPL Euro 0W30)
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    2001 V70-T5 (120K, IPD downpipe, cat back and other mods)
    1932 Packard Sedan (straight 8, dual sidemounts, original paint and interior, Shell Rotella 15W40)

  6. #26
    Join Date
    Dec 2009
    Location
    GA
    Posts
    1,408

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    Your latest scan had a 261 fuel trim upper limit code. That means the O2 sensor thinks it's lean - the ECU will then fire the injectors longer to make up for what it thinks is a lean condition. Upper limit means it won't hold the injectors open any longer and the extra injector time is not curing the lean condition. Possible things that could cause that would be low fuel pressure, air leaks, or a bad O2 sensor. A bad O2 sensor generally will not make a car hard to start. The O2 sensor signal is usually ignored until it heats up. That takes 45-60 seconds. Cars will usually start with a very bad (front) O2 sensor.

    Vida should have suggestions as to what to look at if you click on that code or look it up under information/fault tracing I think.

    Your audio recording - if you are sure you got the air intake hoses all back on correctly - is it possible the car is almost out of gas? Many a car has been towed in out of gas or with a lying/bad gas gauge. (has fooled many a tech and me too when we forget to check the basics!) Or - your car has a saddle gas tank - if fuel is low enough, air can get pulled in from one side and create low fuel pressure/aerated fuel.

    I would check fuel pressure and volume - try to pump fuel out into a container, making sure it's not full of air and has enough volume to run the car.

  7. #27
    Join Date
    Sep 2002
    Location
    Belgium
    Posts
    2,404

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    Quote Originally Posted by Oka View Post
    Are my supposed to hear it running?
    Don't think this model has a Fuel Pump Relay. Could not find one on parts store or in the owner's manual.
    That's what I think/thought should happen.
    But now you make me doubt if this wasn't the case with the 940 and not with the XC70
    Perhaps someone else can confirm, I don't have the XC70 anymore, so I can't try it.
    144 GL (1974)--->244 GL (1982)--->940 GLE 2.3i (1992)--->XC70 2.5T (2004)--->XC90 T5 (2018)

  8. #28
    Join Date
    Dec 2009
    Location
    GA
    Posts
    1,408

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    Quote Originally Posted by Willy View Post
    Perhaps someone else can confirm,
    There is only an intank pump on this model, you can hear it with a stethoscope touching the top of it. Most 940's had a fuel pump mounted under the drivers seat you could easily hear as well as an intank pump.

    There is a fuel pump relay in a 01 xc70 however, located on the CEM - 2/23 on the attached picture
    Click image for larger version. 

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  9. #29
    Join Date
    Sep 2002
    Location
    Belgium
    Posts
    2,404

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    Apparently I am not completely senile (yet), what a relief
    144 GL (1974)--->244 GL (1982)--->940 GLE 2.3i (1992)--->XC70 2.5T (2004)--->XC90 T5 (2018)

  10. #30
    Join Date
    Mar 2013
    Location
    Anchorage, Alaska
    Posts
    577

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    Quote Originally Posted by Willy View Post
    (yet)
    "yet"? Hope never would it ever get to that!

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