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  1. #41
    Established Member Two Rings Brandon K.'s Avatar
    Join Date
    Apr 17 2016
    AZ Member #
    371975
    My Garage
    Lexus RX400h... a nice appliance
    Location
    Vancouver WA

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    Quote Originally Posted by Brandon K. View Post


    The surging had continued to increase and become more annoying. Swapping out the plugs to the old ones reduced it dramatically but it is still there. I may try disconnecting the battery to reset the adaptation to see if that fixes it before going back to the old coils.

    The old plugs have seen better days and should probably be replaced, but they work better than the new ones...


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    Installed new stock plugs gaped down slightly per APR dealer and it makes no difference. I will let my local APR dealer figure out what the problem is.


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  2. #42
    Established Member Two Rings Brandon K.'s Avatar
    Join Date
    Apr 17 2016
    AZ Member #
    371975
    My Garage
    Lexus RX400h... a nice appliance
    Location
    Vancouver WA

    At my APR dealer having an oil change. From the test drive, they said my car is doing the exact same surging that two other cars started after they did the stage 2 on their customers B8s. They said they have a couple hunches that they are going to try and log. One of their hunches is that it could be the torque converter trying to decide between locking and unlocking. They believe that if it is a problem inside the tune itself, that they doubt customer logs will help and APR will need to get a symptomatic car on their dyno. I will let everybody know (including APR) if they are able to find something.

    I also purchased a Vac Com cable and will do some logs for APR. They had asked me to do this when I originally reported the problem to them. Wish me luck!


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  3. #43
    Senior Member Two Rings TurboNate's Avatar
    Join Date
    May 15 2015
    AZ Member #
    332830
    Location
    El Cajon/CA/San Diego

    I've been having this same exact issue myself. I'm on stage 1 APR and at 107k miles. I recently changed out my fuel filter, fuel rail pressure sensor and HPFP, and that issue has gone away for the most part. It's been 2 days and haven't experienced it yet


    Sent from my iPhone using Audizine
    2009 A4 Premium+ Quattro
    APR Stage 2 | CTS Turbo High Flow Cat | Custom Intake System | AG 19x9.5 m580 w/ 10MM Spacers In Rear | RS Mesh Grill | 5% / 20% tint

    AKA: NathanMansoor

  4. #44
    Established Member Two Rings Brandon K.'s Avatar
    Join Date
    Apr 17 2016
    AZ Member #
    371975
    My Garage
    Lexus RX400h... a nice appliance
    Location
    Vancouver WA

    The APR dealer said they are almost positive it is in the tune. The logs checked out & everything is working as the ecu has requested.

    They said they are going to request APR to send them a test pipe tune to try and they will code out the 02 sensor(s). If this eliminates the surging, they will let APR know. He said it will likely take time for APR to work out the issue if this is the case.


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  5. #45
    Established Member Two Rings Brandon K.'s Avatar
    Join Date
    Apr 17 2016
    AZ Member #
    371975
    My Garage
    Lexus RX400h... a nice appliance
    Location
    Vancouver WA

    APR has spoken to my dealer but has asked me to still do some logs... I will see if I can start those this weekend so I can get those out to them ASAP and go back to my APR dealer for the test pipe tune in a couple weeks, assuming that APR has not come out with a solution by then.


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  6. #46
    Established Member Two Rings Brandon K.'s Avatar
    Join Date
    Apr 17 2016
    AZ Member #
    371975
    My Garage
    Lexus RX400h... a nice appliance
    Location
    Vancouver WA

    Need help with logging!!!!

    The procedure seems simple enough, but the names & data blocks APR has asked for don't match up with my 2011 A4 Avant 2.0T.

    What they asked for:
    ROUND 1 LOGGING:
    Use for Boost and Fueling
    Diagnosis

    1001-1Engine Speed
    2014-3Misfire Sum
    3031-1Lambda, Current Value
    4054-3Accelerator Pedal Position
    5054-4Throttle Plate Angle
    6101-3Injection Timing (Median)
    7*103-1*Current Fuel Pressure*
    8114-4N75 Duty Cycle
    9115-3Boost Pressure (Specified)
    10115-4Boost Pressure (Actual)
    11230-1Rail Pressure Specified
    12230-2Rail Pressure Actual


    What I have found.


    Most of the ones I have selected are probably correct, but I could not find anything close to N75 Duty Cycle or any reference to the waist gate. The Lambda one I found may or may not be correct and the fuel pressure blocks don't specify that it's rail pressure.

    I could wait till Monday and ask APR, but it would be at least 2 weeks before I am likely to have the time to do more logging.


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  7. #47
    Established Member Two Rings Brandon K.'s Avatar
    Join Date
    Apr 17 2016
    AZ Member #
    371975
    My Garage
    Lexus RX400h... a nice appliance
    Location
    Vancouver WA

    I did not get time to do the logging and I had to take my car in for a wheel bearing replacement. Put the car in stock mode for the shop. A CEL popped up... I deleted the codes & dropped it off. When I got it back, the CEL came up again so I deleted them again. I switched it back to the 93 octane program.

    It has now been a few hundred miles, and the surging has not returned. Time will tell, but It would appear this time around the adaptation is not causing surging.


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  8. #48
    Senior Member Two Rings Fastbke170's Avatar
    Join Date
    May 01 2015
    AZ Member #
    330661
    My Garage
    2003 Silver GSXR1000, Mazda 3S 2006
    Location
    Northport

    Hey did you install the filter and Turbo intake hose? I had the same issue due to the torque map and the weather it seems. Tuner sent me a map sans torque and it went away. I didn't like it of course as it felt softer. I've since flashed back to original stage 3 (uk). It's ok for now with warmer weather it seems.

    Sent from my SM-G925P using Tapatalk
    2012 A4 Moonlight Blue Metallic : Premium +: Factory 18" GMBH 5 Spoke Wheels: AFE Pro Filter: ECS Turbo Hose : TopGear UK HFC : TopGear UK 3"Stainless Steel Turbo Back Full Dual Exhaust: TopGear UK Powergate 3 Stage 3 Tune:GFB DV+:Eurocode FMIC :3 Spoke S4 Black Steering Wheel w/DSG Paddle shifter : S-Tronic Shifter Knob w/Black Boot : LED White Interior: LED Red Footwell Conversion : Hoen White XEON Match Fog Bulbs :R8 Coil Packs: Puddle Projection Lamps with Audi Rings

  9. #49
    Established Member Two Rings Brandon K.'s Avatar
    Join Date
    Apr 17 2016
    AZ Member #
    371975
    My Garage
    Lexus RX400h... a nice appliance
    Location
    Vancouver WA

    Yep, they are in. So far the surging has not returned. I have only had the filter and intake tube installed for about 300 mile though.

    My surging stop a while back after I switched back and forth from the tuned to stock. Not sure why it fixed it the last time I did it. I had done that at least 3 times before.

    Buy the way, good luck with getting the K04. It had crossed my mind offering to buy it, but I think my wife would have shot me.


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  10. #50
    Senior Member Two Rings Fastbke170's Avatar
    Join Date
    May 01 2015
    AZ Member #
    330661
    My Garage
    2003 Silver GSXR1000, Mazda 3S 2006
    Location
    Northport

    I'm in same situation, believe me. upgrades are no longer discussed. All actions are covertly implemented. 🙄. Seller hasn't answered back, one guy may have beaten me to the deal.

    Sent from my SM-G925P using Tapatalk
    2012 A4 Moonlight Blue Metallic : Premium +: Factory 18" GMBH 5 Spoke Wheels: AFE Pro Filter: ECS Turbo Hose : TopGear UK HFC : TopGear UK 3"Stainless Steel Turbo Back Full Dual Exhaust: TopGear UK Powergate 3 Stage 3 Tune:GFB DV+:Eurocode FMIC :3 Spoke S4 Black Steering Wheel w/DSG Paddle shifter : S-Tronic Shifter Knob w/Black Boot : LED White Interior: LED Red Footwell Conversion : Hoen White XEON Match Fog Bulbs :R8 Coil Packs: Puddle Projection Lamps with Audi Rings

  11. #51
    Established Member Three Rings
    Join Date
    Aug 17 2015
    AZ Member #
    349632
    Location
    Michigan/Ontario

    I have the surging mostly in 2nd gear at 3000 rpm. 3rd seems smooth. I've never tried switching to 91 or stock tune, always been on 93 Stage 2 since the original flash.

    I'm installing a TR8 this weekend so I'll let you know of that helps. Another 2 weeks and I'll go from NGK 7s with 0.032 gap to NGK 8 spark plugs with 0.028 gap. I'll also post here if that helps.

  12. #52
    Established Member Two Rings Brandon K.'s Avatar
    Join Date
    Apr 17 2016
    AZ Member #
    371975
    My Garage
    Lexus RX400h... a nice appliance
    Location
    Vancouver WA

    Quote Originally Posted by A4x View Post
    I have the surging mostly in 2nd gear at 3000 rpm. 3rd seems smooth. I've never tried switching to 91 or stock tune, always been on 93 Stage 2 since the original flash.

    I'm installing a TR8 this weekend so I'll let you know of that helps. Another 2 weeks and I'll go from NGK 7s with 0.032 gap to NGK 8 spark plugs with 0.028 gap. I'll also post here if that helps.
    According to APR, if you have the oddball surging many of us get after going stage 2, it is highly unlikely to be effected by plugs. This is assuming you have good plugs gaped correctly and are a correct set for the car. I tried the plug swap anyway and it did virtually nothing to the surging. My bet is that yours is something different than ours because you yours is mostly confined to second gear. Mine was related to rpm & torque load so it happened in most gears.


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