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  1. #121
    Established Member Two Rings
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    I put a performance log up a couple days ago that had my timing. Just wanted to check fuel rail and lambda. I'm not sure how to interpret that information, so I put it on here. Thanks

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  2. #122
    Established Member Two Rings
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    Logs here.

    I did a handful of pulls in 2nd-3rd and/or 3rd-4th with ~1-2 min rest in between.

    Car: B8 S4 DSG
    Fuel: Chevron 91 + 3 gal of E85 to get ~E20
    DA: 7000'
    Ambient temp: 80F
    Pulleys: 187mm lower, stock upper
    Tune: Unitronic Stage 2+
    Cooling: PLM Hx w/o reservoir and 50/50 coolant-water

  3. #123
    Veteran Member Three Rings Jester2893's Avatar
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    Eurodyne Stage 2: (93 with 2 gallons E85) - https://docs.google.com/spreadsheets...it?usp=sharing

    Can anyone send me a list of parameters to log to identify why my car is running rich (ie something wrong or tune based) ? I couldn't find the parameters that were suggested to me.

  4. #124
    Established Member Three Rings Ford Prefect's Avatar
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    2011 Silver S4, Mercedes Benz R350 ('07 & '11), Suzuki SV1000
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    Quote Originally Posted by greedy6 View Post
    here is fuel rail pressures, fuel pump pressures, IAT, air mass, etc.

    https://datazap.me/u/greedtoad/fuel-...data=1-3-4-6-7

    looks like after this last run i'm now getting a misfire on cylinder 6 -- assuming the plug took a beating.. will just put another plug in and drive normal until i get this issue figured out. i enjoy my engine..
    Did you get anything figured out? My timing pull is bad, just looking for options, so far I'm seeing fuel and plugs with a slight possibility of the wrong map (doubtful). I've seen .024 and .026. Can't remember what my gas is but crazy to think it varies that much.

  5. #125
    Established Member Two Rings greedy6's Avatar
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    Never did figure it out. I ended up losing cylinder 6 and that was that. I suspect it was running out of fuel... Did you upgrade to a HPFP? if not, maybe you should start there and see were it takes you.
    '10 S4 Prestige 6MT | APR Ultracharger (3.238)

  6. #126
    Established Member Three Rings Ford Prefect's Avatar
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    2011 Silver S4, Mercedes Benz R350 ('07 & '11), Suzuki SV1000
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    Quote Originally Posted by greedy6 View Post
    Never did figure it out. I ended up losing cylinder 6 and that was that. I suspect it was running out of fuel... Did you upgrade to a HPFP? if not, maybe you should start there and see were it takes you.
    Well, I guess Iíll add afr to my knock logs and see what happens. Iím almost thinking Iíll do plugs and ensure good gas before I run it hard again.

    What you mean you lost 6?


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  7. #127
    Established Member Two Rings greedy6's Avatar
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    My engine failed and the cylinder ended up having a small piece missing on the head of it. So i scrapped the engine and sold the car.
    I guess it could have been anything really but i suspect not enough fuel was being pushed into it from the HPFP. the car went days before i was going to swap it out...
    '10 S4 Prestige 6MT | APR Ultracharger (3.238)

  8. #128
    Active Member Two Rings sbw's Avatar
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    Quote Originally Posted by Ford Prefect View Post
    Did you get anything figured out? My timing pull is bad, just looking for options, so far I'm seeing fuel and plugs with a slight possibility of the wrong map (doubtful). I've seen .024 and .026. Can't remember what my gas is but crazy to think it varies that much.
    It's not as crazy as you think in the New England area. There's notorious bad gas around here even at some more reputable stations. Im chasing it down myself right now.

  9. #129
    Established Member Three Rings Ford Prefect's Avatar
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    2011 Silver S4, Mercedes Benz R350 ('07 & '11), Suzuki SV1000
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    Quote Originally Posted by sbw View Post
    It's not as crazy as you think in the New England area. There's notorious bad gas around here even at some more reputable stations. Im chasing it down myself right now.
    And to think NH doesnít require ethanol. Iíve got some plug changing/re-gaping before I bitch about any gas issues. Although at this point I will be more particular (as I am with every other aspect of my life according to my wife). Suppose I should start filling up before pulling Cramer on how far I can go.


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  10. #130
    Active Member One Ring
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    I don't have a log to post at the moment plus I'm using OBD11. If anyone knows how to log the bypass on OBD11 please let me know.
    2010 S4 6MT 3rd gear pull with a Chipwerke Stg1 and Injen intake requesting 2426 hpa and seeing 1682 hpa.
    With it removed its requesting 2426 hpa and seeing 2075 hpa.
    I know It's not much information but would you think that my car is on the oem tune or not?
    Last edited by VenomousGravity; 07-10-2018 at 06:11 AM.

  11. #131
    Veteran Member Four Rings RWD2quattro's Avatar
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    Lexus IS250, Volvo 850R, Ford tractor
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    Quote Originally Posted by whiped View Post
    Copper sparks better than the other plugs people usually use - Platinum, Iridium, etc. But, it doesn't last as long.

    I use the Bosch FR5DTC plugs, which is what Nate runs and suggested to me as a fix for the misfires I was having up top last year. I change them out every 10k miles.

    Another option are the Brisk Silver plugs that Matt runs, I don't have the product number but those should also spark stronger.

    I tested stock plugs gapped all the way down to 0.024" last year and would still miss with WMI turned on. Same with the 9 heat range plugs. No issues so far with the copper ones.
    Iíll try Brisk plugs next, my car misfired like crazy with those Bosch copper plugs. Ro, if you want to try them out, you can have mine. I used them for less than 300 miles and yanked them out.
    Brisk link;
    http://https://www.jegs.com/i/Brisk-USA/084/DR12YS/10002/-1
    2014 S4, Audi Exclusive DRM, 6MT, 034 Stage 2+ E40, DP (3.362), AMS Cooler, AEM meth kit @TB (500cc), Autotech HPFP, ADV. 1 wheels, CR-15, CF low kick spoiler, Deval CF, JHM LWFW/3R, Eurocode, KW V3, ST6 BBK, USP SS clutch line, XPEL full wrap.
    Gone: 2012 S4 Brilliant Black, Prestige, S-tragic.

  12. #132
    Senior Member Three Rings Rodizzle's Avatar
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    Misfires on WOT ? Or just Daily driving it ? I has having notable misfires on WOT before with the oem plugs . I have a set of these copper plugs in my car the misfires are gone at WOT But I do get get 4-6 misfire when I first start my car as it idle and drive for couple of minute .


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  13. #133
    Veteran Member Four Rings RWD2quattro's Avatar
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    Quote Originally Posted by Rodizzle View Post
    Misfires on WOT ? Or just Daily driving it ? I has having notable misfires on WOT before with the oem plugs . I have a set of these copper plugs in my car the misfires are gone at WOT But I do get get 4-6 misfire when I first start my car as it idle and drive for couple of minute .
    Sent from my iPhone using Tapatalk Pro
    At idle, under throttle, light throttle, it didn't matter. Car would stumble/bog down, did some logging and saw a bunch of hits on every cylinder at different RPM's (all over the place). I went back to stock plugs, gapped to .024 and solved most of my issues, my current issue now is LPFP like we talked about. Awaiting Nate's reply for an E40 remap.
    2014 S4, Audi Exclusive DRM, 6MT, 034 Stage 2+ E40, DP (3.362), AMS Cooler, AEM meth kit @TB (500cc), Autotech HPFP, ADV. 1 wheels, CR-15, CF low kick spoiler, Deval CF, JHM LWFW/3R, Eurocode, KW V3, ST6 BBK, USP SS clutch line, XPEL full wrap.
    Gone: 2012 S4 Brilliant Black, Prestige, S-tragic.

  14. #134
    Senior Member Four Rings whiped's Avatar
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    Quote Originally Posted by RWD2quattro View Post
    At idle, under throttle, light throttle, it didn't matter. Car would stumble/bog down, did some logging and saw a bunch of hits on every cylinder at different RPM's (all over the place). I went back to stock plugs, gapped to .024 and solved most of my issues, my current issue now is LPFP like we talked about. Awaiting Nate's reply for an E40 remap.
    I had this when I first switched and replacing my coils fixed it.

    I'm going to try the Silver plugs when I switch again in 5k miles.

    The latest E40 map (R2.60) should be fine for your PR. I still bleed a tiny bit in 2nd gear. Supposedly he is close to having remote TCU tuning done which will require tweaking all my tunes again lol :)
    Geoff
    '13 S4 - Glacier White | DSG | 034 Stage 2++ | Current Setup
    452WHP / 443WTQ | 11.352 @ 119.26 | 034 Featured User

  15. #135
    Active Member Three Rings Morritse's Avatar
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    Stage 2 b8 a5 (sold)
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    Tuner and I are trying to figure out why I am down 50HP after going from e40 to e85 (all supporting hardware for e85 is installed)

    Here's the logs from 2 Dyno runs. Any ideas guys?

    https://drive.google.com/file/d/1Eyw...w?usp=drivesdk

  16. #136
    Senior Member Four Rings whiped's Avatar
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    Sorry if it is posted somewhere but what is all done to the car?

    You're pulling timing up top and realistically should be requesting more timing on the full E85 tune.

    It might be the tune but you're also leaning out up top.

    If you are higher than ~3.0 pulley ratio this is probably because the injectors are maxed out.

    Fields to log:
    Equivalence ratio target value (target Lambda, do this vs actual on both banks)
    Fuel pump: actual fuel pressure (low pressure)
    Actual fuel rail pressure (high pressure)
    TI_1_HOM[0] (injector pulse width cylinder 1)
    TI_1_HOM[3] (cylinder 4 which is the last on the fuel line)
    Geoff
    '13 S4 - Glacier White | DSG | 034 Stage 2++ | Current Setup
    452WHP / 443WTQ | 11.352 @ 119.26 | 034 Featured User

  17. #137
    Active Member Three Rings Morritse's Avatar
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    Quote Originally Posted by whiped View Post
    Sorry if it is posted somewhere but what is all done to the car?

    You're pulling timing up top and realistically should be requesting more timing on the full E85 tune.

    It might be the tune but you're also leaning out up top.

    If you are higher than ~3.0 pulley ratio this is probably because the injectors are maxed out.

    Fields to log:
    Equivalence ratio target value (target Lambda, do this vs actual on both banks)
    Fuel pump: actual fuel pressure (low pressure)
    Actual fuel rail pressure (high pressure)
    TI_1_HOM[0] (injector pulse width cylinder 1)
    TI_1_HOM[3] (cylinder 4 which is the last on the fuel line)
    I see where you're coming from with the injectors, but I don't think that the case. Torque was ~40 lower throughout the entire power band.

    Pulley ratio is 3.14

    Dual pulley e85 APR cooling system. Autotech hpfp. Custom exhaust (catless). Recently replaced fuel filter.

  18. #138
    Senior Member Four Rings whiped's Avatar
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    Do you have logs from before and what tune?
    Geoff
    '13 S4 - Glacier White | DSG | 034 Stage 2++ | Current Setup
    452WHP / 443WTQ | 11.352 @ 119.26 | 034 Featured User

  19. #139
    Veteran Member Four Rings RWD2quattro's Avatar
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    Quote Originally Posted by whiped View Post
    I had this when I first switched and replacing my coils fixed it.
    I'm going to try the Silver plugs when I switch again in 5k miles.
    The latest E40 map (R2.60) should be fine for your PR. I still bleed a tiny bit in 2nd gear. Supposedly he is close to having remote TCU tuning done which will require tweaking all my tunes again lol :)
    Hey Geoff, I went thru 3 sets of plugs and 2 sets of coils then ran into issues with SPEC clutch. I'm almost there with my new clutch break in, shortly I will start logging again to check things out and install the AEM meth kit I picked up. It's been a struggle the last few weeks not being able to hammer down
    2014 S4, Audi Exclusive DRM, 6MT, 034 Stage 2+ E40, DP (3.362), AMS Cooler, AEM meth kit @TB (500cc), Autotech HPFP, ADV. 1 wheels, CR-15, CF low kick spoiler, Deval CF, JHM LWFW/3R, Eurocode, KW V3, ST6 BBK, USP SS clutch line, XPEL full wrap.
    Gone: 2012 S4 Brilliant Black, Prestige, S-tragic.

  20. #140
    Active Member Three Rings Morritse's Avatar
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    Quote Originally Posted by whiped View Post
    Do you have logs from before and what tune?
    No, I am planning to do logs on the e85 and 91 tune ASAP.

  21. #141
    Veteran Member Four Rings kelseysautobody's Avatar
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    Quote Originally Posted by Morritse View Post
    I see where you're coming from with the injectors, but I don't think that the case. Torque was ~40 lower throughout the entire power band.

    Pulley ratio is 3.14

    Dual pulley e85 APR cooling system. Autotech hpfp. Custom exhaust (catless). Recently replaced fuel filter.
    Did you have the Autotech installed on the 91 tune as well? A couple people have posted some about issues after installing it.
    2013 S4 S-tronic - APR intake // KI 200mm crank pulley // EPL Stg II DP 93 + TCU tune // PLM hx // Jokerz Blower // Headers
    11.281 @ 121.58
    1993 URS4 - Work in progress...
    Past: 07 S4 6MT ~ 03 A4 3.0 6MT ~ 99 A4 1.8T

  22. #142
    Active Member Three Rings Morritse's Avatar
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    Quote Originally Posted by kelseysautobody View Post
    Did you have the Autotech installed on the 91 tune as well? A couple people have posted some about issues after installing it.
    Yes.. what kind of issues

  23. #143
    Established Member Two Rings
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    B8 S4 log thread. Post your VCDS logs here.

    Quote Originally Posted by Morritse View Post
    Yes.. what kind of issues
    Itís discussed in one or two semi-recent threads, briefly. In summation, one or more people had to send their autotech HPFPs back, as they were actually putting out lower pressure than their stock HPFP. QC issue, if I recall. Kelseysautobody may have more to say (not trying to respond for him ).


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  24. #144
    Veteran Member Four Rings kelseysautobody's Avatar
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    Quote Originally Posted by Morritse View Post
    Yes.. what kind of issues
    Quote Originally Posted by SGR View Post
    Itís discussed in one or two semi-recent threads, briefly. In summation, one or more people had to send their autotech HPFPs back, as they were actually putting out lower pressure than their stock HPFP. QC issue, if I recall. Kelseysautobody may have more to say (not trying to respond for him ).
    This. I forget what member/thread it was in but Autotech warrantied the faulty part and it took care of the problem.

    But since your HPFP was installed prior to switching tunes I doubt it is the cause of your problem.
    2013 S4 S-tronic - APR intake // KI 200mm crank pulley // EPL Stg II DP 93 + TCU tune // PLM hx // Jokerz Blower // Headers
    11.281 @ 121.58
    1993 URS4 - Work in progress...
    Past: 07 S4 6MT ~ 03 A4 3.0 6MT ~ 99 A4 1.8T

  25. #145
    Active Member Three Rings Morritse's Avatar
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    Quote Originally Posted by kelseysautobody View Post
    This. I forget what member/thread it was in but Autotech warrantied the faulty part and it took care of the problem.

    But since your HPFP was installed prior to switching tunes I doubt it is the cause of your problem.
    Yea I doubt it's the hpfp. My best power run was ok e40 with the autotech. And I was running rich as well

  26. #146
    Active Member Three Rings Morritse's Avatar
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    Logged on 91 yesterday and was still getting bad timing pull. Here's the logs

    https://docs.google.com/spreadsheets...t?usp=drivesdk

  27. #147
    Established Member Two Rings
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    You don't have desired lambda logged, but it seems very similar to the stock fuel request, where 'performance' enrichment isn't happening until later in the rpms. If the enrichment would kick in earlier, timing pull would subside. Timing pull isn't really that bad anyway, and you certainly are not too rich. Splash a little e85 in the tank and I bet most of the timing correction would go away.
    Last edited by sb_gli; 07-14-2018 at 12:51 PM. Reason: if read out of order, it could seem as though I was tuner bashing

  28. #148
    Active Member Three Rings Morritse's Avatar
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    Quote Originally Posted by sb_gli View Post
    Your tune's fuel request sucks.

    You don't have desired lambda logged, but it seems very similar to the stock fuel request, where 'performance' enrichment isn't happening until later in the rpms. If the enrichment would kick in earlier, timing pull would subside. Timing pull isn't really that bad anyway, and you certainly are not too rich. Splash a little e85 in the tank and I bet most of the timing correction would go away.
    I'm pretty sure the tune itself is fine... All ethanol blends suck equally now, so would this suggest?

  29. #149
    Established Member Two Rings
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    Quote Originally Posted by Morritse View Post
    I'm pretty sure the tune itself is fine... All ethanol blends suck equally now, so would this suggest?
    "Fine" is relative and I feel quite certain that the request is not optimal for performance. Add desired lambda to logs for proof.

  30. #150
    Senior Member Four Rings whiped's Avatar
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    Mass knk correction. Could just be the super shitty gas. I agree with dumping like 2-3 gals of E85 in and trying again. That should tell us if it is mechanical or not.

    Also, ditch vehicle speed, air mass, requested boost and RFP_AV for something more interesting. Those themselves don't really tell us anything.

    Something like: Engine Speed, Actual Boost, Timing Request on all cylinders, IATs, Lambda?
    Geoff
    '13 S4 - Glacier White | DSG | 034 Stage 2++ | Current Setup
    452WHP / 443WTQ | 11.352 @ 119.26 | 034 Featured User

  31. #151
    Established Member Two Rings
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    Quote Originally Posted by whiped View Post
    Mass knk correction. Could just be the super shitty gas. I agree with dumping like 2-3 gals of E85 in and trying again. That should tell us if it is mechanical or not.

    Also, ditch vehicle speed, air mass, requested boost and RFP_AV for something more interesting. Those themselves don't really tell us anything.

    Something like: Engine Speed, Actual Boost, Timing Request on all cylinders, IATs, Lambda?
    Make sure to add both actual and requested lambda... agree that vehicle speed is totally irrelevant, as is requested boost and RFP_AV if you are not troubleshooting boost bleed off.

  32. #152
    Active Member Three Rings Morritse's Avatar
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    Quote Originally Posted by sb_gli View Post
    Make sure to add both actual and requested lambda... agree that vehicle speed is totally irrelevant, as is requested boost and RFP_AV if you are not troubleshooting boost bleed off.
    Ok

    I'll do that later today, can you guys give me a full list of parameters to log? If one of you is an expert at this, and can afford to dedicate some time to helping me figure out what is wrong, I am definitely willing to compensate you family.

  33. #153
    Senior Member Four Rings whiped's Avatar
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    Ehhh I'm not too interested in lambda on a pump gas tune. The Ethanol one yes, this one he should be meeting all the fueling requirements easily.
    Geoff
    '13 S4 - Glacier White | DSG | 034 Stage 2++ | Current Setup
    452WHP / 443WTQ | 11.352 @ 119.26 | 034 Featured User

  34. #154
    Active Member Three Rings Morritse's Avatar
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    Quote Originally Posted by whiped View Post
    Ehhh I'm not too interested in lambda on a pump gas tune. The Ethanol one yes, this one he should be meeting all the fueling requirements easily.

    These were my thoughts as well. It definitely feels like a fuel delivery or ignition issue. How can I tell though?

  35. #155
    Senior Member Four Rings whiped's Avatar
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    Start figuring out what it isn't...
    Geoff
    '13 S4 - Glacier White | DSG | 034 Stage 2++ | Current Setup
    452WHP / 443WTQ | 11.352 @ 119.26 | 034 Featured User

  36. #156
    Active Member Three Rings Morritse's Avatar
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    Quote Originally Posted by whiped View Post
    Start figuring out what it isn't...
    That the goal... I really wouldn't know how exactly what do log to do so, let alone interpret it. Like I said, I'd be down to pay you for your time.

  37. #157
    Established Member Two Rings
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    Quote Originally Posted by whiped View Post
    Ehhh I'm not too interested in lambda on a pump gas tune. The Ethanol one yes, this one he should be meeting all the fueling requirements easily.
    Why not? If you trying to troubleshoot fueling, you want to know what the tune is requesting. In performance tuning, fueling is step 1, regardless of what type of fuel you are using. If actual is following desired, and actual isn't what you'd expect for a performance calibration, then you know the issue is in the tune.

    Perhaps you didn't notice that the fuel request isn't optimal @ WOT until after 4,000ish rpms? And maybe you didn't notice that once fueling is optimal timing pull subsides?

  38. #158
    Active Member Three Rings Morritse's Avatar
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    Quote Originally Posted by sb_gli View Post
    Why not? If you trying to troubleshoot fueling, you want to know what the tune is requesting. In performance tuning, fueling is step 1, regardless of what type of fuel you are using. If actual is following desired, and actual isn't what you'd expect for a performance calibration, then you know the issue is in the tune.

    Perhaps you didn't notice that the fuel request isn't optimal @ WOT until after 4,000ish rpms? And maybe you didn't notice that once fueling is optimal timing pull subsides?
    I 100% did notice that the car feels sluggish at lower RPMs, which definitely isn't characteristic of what I am used to.

  39. #159
    Active Member Three Rings Morritse's Avatar
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    Ok here are the logs with parameters that you suggesting logging.

    I also logged all cylinders for timing pull and had absolutely 0.

    Not sure what to make of this, car still feels slow.

    https://docs.google.com/spreadsheets...it?usp=sharing

  40. #160
    Senior Member Four Rings whiped's Avatar
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    Quote Originally Posted by Morritse View Post
    Ok here are the logs with parameters that you suggesting logging.

    I also logged all cylinders for timing pull and had absolutely 0.

    Not sure what to make of this, car still feels slow.

    https://docs.google.com/spreadsheets...it?usp=sharing
    Cool, super helpful fuel logs.

    You're leaning out a bit up top but I think that is a result of the tune and not mechanical. (Injector window gets shorter for some reason)

    Any idea what timing request is on this tune? (It doesn't really change which is why I didn't have you log it assuming you know it :) )

    If possible try to switch to something with mid 20* of timing and do another set of logs. These parameters are fine for the time being. I'm just trying to rule things out.
    Geoff
    '13 S4 - Glacier White | DSG | 034 Stage 2++ | Current Setup
    452WHP / 443WTQ | 11.352 @ 119.26 | 034 Featured User

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