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Thread: s6 rough idle

  1. #1
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    s6 rough idle

    I have 2000 s6 that keeps suffering rough idle. Could it be air leak as idle goes high or is it in fact O2 sensors?

    Monday,15,April,2013,18:15:29:57722
    VCDS Version: Release 11.11.5
    Data version: 20121222

    ----------------------------------------------------------
    ----------------------------------------------------------

    Address 01: Engine Labels: None
    Control Module Part Number: 4D0 907 558
    Component and/or Version: 4.2L V8/5V G 0002
    Software Coding: 05752
    Work Shop Code: WSC 02325
    VCID: EADEE597969E13481F8
    7 Faults Found:

    17755 - Camshaft Position Sensor 2 (G163) / Engine Speed Sensor (G28)
    P1347 - 35-00 - Incor. Correl.
    16514 - Oxygen (Lambda) Sensor B1 S1
    P0130 - 35-10 - Malfunction in Circuit - Intermittent
    16534 - Oxygen (Lambda) Sensor B2 S1
    P0150 - 35-10 - Malfunction in Circuit - Intermittent
    17748 - Camshaft Position Sensor (G40) / Engine Speed Sensor (G28)
    P1340 - 35-10 - Incor. Correlation - Intermittent
    17538 - Fuel Trim; Bank 2 (Mult)
    P1130 - 35-10 - System too Lean - Intermittent
    17536 - Fuel Trim; Bank 1 (Mult)
    P1128 - 35-10 - System too Lean - Intermittent
    17521 - Oxygen (Lambda) Sensor; B1 S1
    P1113 - 35-10 - Internal Resistance too High - Intermittent

    Readiness: 0000 0000

    ----------------------------------------------------------
    ----------------------------------------------------------

    Address 01: Engine (4D0 907 558 )

    18:16:41 Group 001
    760 /min RPM
    85.0°C Temperature
    0.0 % Lambda
    0.0 % Lambda

    ----------------------------------------------------------
    ----------------------------------------------------------

    Address 01: Engine (4D0 907 558 )

    18:16:59 Group 002
    760 /min RPM
    15.0 % Load
    3.40 ms Inj. On Time
    5.44 g/s Mass Flow

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  3. #2
    bearthebruce's Avatar
    Ross-Tech, LLC

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    I would not guess it is the sensors.. I would be looking for signal reference or something in common between the G40, G28, G163, and the O2 sensors... too many critical sensors giving false information to the controller. Got to sort that first. Once those are sorted, my guess is that the Fuel Trims will come back in line.

    Did you tell us everything? Any mods made? Change anything before this happened?
    -Bruce-
    Ross-Tech, LLC
    Bruce@Ross-Tech.com

  4. #3
    bez101's Avatar
    Yorkshire & Humber Rep.

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    clear them all
    then rescan some could be old codes

 

 

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