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  1. #1
    Active Member Two Rings
    Join Date
    Dec 09 2018
    AZ Member #
    432853
    Location
    Cedar Park

    Timing Chain Data Question

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    I scanned my car to check the timing chain tensioners. Here is the data

    700RPM

    10:08:19 Group 091: Camshaft Adjustment (Bank 1: Intake)
    707 /min Engine Speed (G28)
    0.0 % Intake Camshaft Duty Cycle
    0.0KW Adjustment (specified)
    0.0KW Adjustment (actual)

    10:08:19 Group 092: Camshaft Adjustment (Bank 2: Intake)
    710 /min Engine Speed (G28)
    0.0 % Intake Camshaft Duty Cycle
    0.0KW Adjustment (specified)
    0.0KW Adjustment (actual)

    10:08:19 Group 093: Camshaft Adjustment (Adaption Values)
    0.8KW Phase Position Intake Bank 1
    6.4KW Phase Position Intake Bank 2
    3.0KW Phase Position Exhaust Bank 1
    4.5KW Phase Position Exhaust Bank 2


    3790RPM

    10:08:47 Group 091: Camshaft Adjustment (Bank 1: Intake)
    3790 /min Engine Speed (G28)
    0.0 % Intake Camshaft Duty Cycle
    0.0KW Adjustment (specified)
    0.4KW Adjustment (actual)

    10:08:47 Group 092: Camshaft Adjustment (Bank 2: Intake)
    3811 /min Engine Speed (G28)
    0.0 % Intake Camshaft Duty Cycle
    0.0KW Adjustment (specified)
    0.4KW Adjustment (actual)

    10:08:47 Group 093: Camshaft Adjustment (Adaption Values)
    1.5KW Phase Position Intake Bank 1
    7.1KW Phase Position Intake Bank 2
    3.8KW Phase Position Exhaust Bank 1
    5.3KW Phase Position Exhaust Bank 2


    So from this I gather I need to do my Bank 2 tensioner. Is bank 2 the passenger side?

  2. #2
    Veteran Member Four Rings christianb5s4's Avatar
    Join Date
    Aug 24 2014
    AZ Member #
    277489
    Location
    Newport Beach, CA

    Bank 2 is driver's side. Do you have any trouble codes coming up that led you to scan for timing issues?
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  3. #3
    Active Member Two Rings
    Join Date
    Dec 09 2018
    AZ Member #
    432853
    Location
    Cedar Park

    I get some misfires on a cold start for about 20 seconds. I figure Id check the timing since it is an issue with these cars. The drivers side is the side that is misfiring on start up.

    The tensioner replacement doesnt look that hard.

  4. #4
    Established Member Two Rings a1dan_87's Avatar
    Join Date
    Mar 07 2018
    AZ Member #
    415178
    Location
    Utah

    Quote Originally Posted by Klaus Von R. View Post
    I get some misfires on a cold start for about 20 seconds. I figure Id check the timing since it is an issue with these cars. The drivers side is the side that is misfiring on start up.

    The tensioner replacement doesnt look that hard.
    To my knowledge it's doable, but it's a pain to do without some labor

    Sent from my ZTE B2017G using Audizine mobile app

  5. #5
    Established Member Two Rings
    Join Date
    Mar 04 2018
    AZ Member #
    415001
    Location
    Virginia

    We all have misfires on cold start. LOL. What year and what engine (3.2 or 4.2)? Do you hear the chain rattle at startup for a few seconds? How many miles?

  6. #6
    Active Member Two Rings
    Join Date
    Dec 09 2018
    AZ Member #
    432853
    Location
    Cedar Park

    Quote Originally Posted by akingzkid View Post
    We all have misfires on cold start. LOL. What year and what engine (3.2 or 4.2)? Do you hear the chain rattle at startup for a few seconds? How many miles?
    Well, the misfire issue is fixed. It starts up fine in the morning now.

    I cant really tell if there is a rattle. I already bought the tensioner for the bank 2, Ill probably do it next weekend. Im doing another wheel bearing this weekend.



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