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  1. #1
    Saab Nut
    Join Date
    02 Aug 2010
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    Thumbs Up:   9

    P1110 - Charge Air Bypass Valve

    Performance Problems

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    Fault symptoms

    CHECK ENGINE.

    Type of diagnosis:

    - Continuous. But interrupted when fault criteria fulfilled and will not restart until next driving cycle.

    Enable criteria:

    - General conditions for this trouble code: Atmospheric pressure must exceed 72 kPa and the engine coolant and intake air temperatures must exceed -7 C.

    - Main relay voltage exceeding 10V. Engine speed below 3500 rpm. The inlet pressure drops rapidly by more than 3 kPa whereupon the accelerator pedal is fully released. The charge air pressure exceeds 120 kPa. The solenoid valve for the by-pass valve has been deactivated.

    Fault criteria:

    - Charge air pressure pulsating at 14-18 Hz with amplitude exceeding 3 kPa. Criteria must be fulfilled on two separate occasions within 600 s during the same driving cycle.

    Dependents:

    - P0106, P0107, P0108, P1105, P1106, P1107, P1108, P1530, P1531, P1532, P1631, P1632 and P1633.

    System reaction to a fault:

    - The MAP sensor is used as a substitute value.

    OK report:

    - Enable criteria fulfilled and amplitude below 1 kPa. Criteria must be fulfilled on three consecutive occasions during the same driving cycle.

    Diagnostic help

    Fault diagnosis concerns a fault in connecting control hoses, in the solenoid valve or the bypass valve.

    Functions in the diagnostic tool related to the fault:

    Diagnostic status for the diagnosis.
    Activate output for bypass solenoid.

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  2. #2
    Saab Fan
    Join Date
    08 May 2012
    Location
    Montgomery , Al
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    20
    Saab(s)
    2004 9 -5 Aero
    Thumbs Up:   0
    Did anyone ever resolve the issue at hand when the p1110 code was pulled? I recently purchased a 2004 9 5 aero and this code came up almost a week ago. I would like to get it fixed before I hit the road this weekend.

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  3. #3
    Frank
    Administrator nordwulf's Avatar
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    30 Jul 2010
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    USA - Netherlands
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    7,762
    Saab(s)
    previous: 2006 9-3, 2001-06 9-5, 2011 9-4X
    Thumbs Up:   105
    There are quite a few threads about the P1110 code. You may get quicker assistance when you reply to an existing thread if you think that applies to your situation as well. Just put P1110 in the search box and you'll find the threads.

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  4. #4
    Saab Fan
    Join Date
    08 May 2012
    Location
    Montgomery , Al
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    20
    Saab(s)
    2004 9 -5 Aero
    Thumbs Up:   0
    I found the problem. The hose is missing from that main tube beside the oil filler cap


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  5. #5
    Saab Enthusiast photousa's Avatar
    Join Date
    27 Sep 2010
    Location
    Chicago, Illinois USA
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    220
    Saab(s)
    2003 Saab 9-5 Aero 2.3t Wagon HO Manual
    Thumbs Up:   1
    Do you have a photo of exactly the hose that was missing and where you installed the replacement? Why would that hose be missing? Did that solve your P1110 code issue?

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    2003 Saab 9-5 Aero B235R
    Sport Wagon 2.3T HO Manual
    140,627 Miles

  6. #6
    Chad Wall
    Saab Fan writerchad's Avatar
    Join Date
    23 Jan 2013
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    Decatur, Georgia, United States
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    12
    Saab(s)
    2000 Saab 9-5
    Thumbs Up:   0
    Got the P1110 code on the way to work this morning. Searching under the hood I found a disconnected hose. Question is where does it reattach?

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  7. #7
    Frank
    Administrator nordwulf's Avatar
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    previous: 2006 9-3, 2001-06 9-5, 2011 9-4X
    Thumbs Up:   105
    Where does it come from?

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  8. #8
    Chad Wall
    Saab Fan writerchad's Avatar
    Join Date
    23 Jan 2013
    Location
    Decatur, Georgia, United States
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    Saab(s)
    2000 Saab 9-5
    Thumbs Up:   0
    hopefully this picture will be more clear. the tube comes from a t-joint.

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  9. #9
    Chad Wall
    Saab Fan writerchad's Avatar
    Join Date
    23 Jan 2013
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    Decatur, Georgia, United States
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    Saab(s)
    2000 Saab 9-5
    Thumbs Up:   0
    Once I get back down to my building's parking garage I can check this diagram.

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  10. #10
    Chad Wall
    Saab Fan writerchad's Avatar
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    23 Jan 2013
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    Decatur, Georgia, United States
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    Saab(s)
    2000 Saab 9-5
    Thumbs Up:   0
    still couldn't find a nipple.

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