1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Anyone had a play with ECUPLOT by nyet - nefmoto

Stuart B May 16, 2018

  1. Stuart B

    Stuart B Well-Known Member

    2,750
    582
    113
    It takes in Log files and creates pretty charts, not sure about the accuracy of the "money shot" default chart :)

    if there are any experts here is there too much timing advance causing retard > 5500? the IAT are only 18 degrees, Lamfa/AFR 0.92 / 13.5 and EGT 800 when it gets what I assume is "knock" it is quite a conservative load - peaking at 18PSI instead of 21PSI and getting there smoothly peaking at 5500 - so there is room for some more assuming the engine is healthy.


    ecuplot-jokes.png
     
  2. Avatar

    Google AdSense Advertisement


  3. IanPG

    IanPG Well-Known Member Silver Supporter Team Nogaro Blue Audi S3

    1,527
    641
    113
    I love ecuXPlot

    .92 lambda... quite lean there sir.
     
  4. IanPG

    IanPG Well-Known Member Silver Supporter Team Nogaro Blue Audi S3

    1,527
    641
    113
    Although the lambda is not shown on your screenshot
     
  5. Stuart B

    Stuart B Well-Known Member

    2,750
    582
    113
    I will check my lamfa map against the logs. This is only a stage one map. As only a B5 tip and air filter.
     
  6. IanPG

    IanPG Well-Known Member Silver Supporter Team Nogaro Blue Audi S3

    1,527
    641
    113
    Yeah still a good idea you enrich when upping boost
     
  7. Stuart B

    Stuart B Well-Known Member

    2,750
    582
    113
    well the logs are matching my map. it is enriched compared to a stock fueling and also a generic stage 1 map and the TTQS BFV map. and I know it is enriched as my average MPG is now 27MPG instead of 32MPG :)


    lamfa.png


    because of the knock voltage in the log, I have returned the timing back to stock but just tweaked the load a little more. which is pretty low compared to the boost PSI and MAF readings, maybe this turbo is super healthy - or really unhealthy?

    engineload.png


    does anyone know why a BFV Map has an increase in engine load during continuous knock? it seems weird to me - but I wonder whether they pull the timing and are trying to fill the gap in power by ramping up the load? where-as amateurs like me just let the power drop to look after the engine? or has someone got the values in the wrong columns?

    bambfv.png
     
  8. Stuart B

    Stuart B Well-Known Member

    2,750
    582
    113
    I am wondering whether the knock voltage is because I still have stock spark plugs rather than BKR7E. I have some ready to put in.
     
  9. antwan64og

    antwan64og Well-Known Member

    970
    260
    63
    There shouldn’t be continuous knock, a few counts at high rpm I think is acceptable. I don’t even count that as knock since the since the sensors can pick up valvetrain noise at high rpm, no way round that.

    Is this with premium fuel?
     
  10. Stuart B

    Stuart B Well-Known Member

    2,750
    582
    113
    I don't think having a small number in the knock voltage is actually knocking. It adjusts the target timing though, so the 24 degrees btdc in the map gets changed to 8.
    I am only a real beginner at this and should have carried on collecting key rings instead :D

    I'm not gonna change anything else now until plugs and FMIC then a little more fuel.
     
  11. badger5

    badger5 www.badger5.co.uk Site Sponsor

    9,796
    2,163
    113
    enrich it ffs.... timing intervention will reduce when you fuel/cool the cylinders
     
  12. Avatar

    Google AdSense Advertisement


  13. Alex C

    Alex C Well-Known Member VCDS Map User Audi S3

    3,365
    390
    83
    so knock detection is pulling timing by 16°?
     
    Last edited: May 21, 2018
  14. IanPG

    IanPG Well-Known Member Silver Supporter Team Nogaro Blue Audi S3

    1,527
    641
    113
    Do this one Stuart....
     
  15. badger5

    badger5 www.badger5.co.uk Site Sponsor

    9,796
    2,163
    113
    only 12 allowed as max in std map, so somethings wrong in the data or interpretation thereof. unlikely 16 pulled
     
    Alex C likes this.
  16. Stuart B

    Stuart B Well-Known Member

    2,750
    582
    113
    Thanks guys :)
    It will be my data interpretation. I will upload a more generous fueling for discussion :)
     
  17. Stuart B

    Stuart B Well-Known Member

    2,750
    582
    113
    okay so really excited about the extra enrichment - as this is only supposed to be a stage 1 map until I have the other hardware in place I am going to wind the load back a touch and aim for more like 17 PSI at peek boost (otherwise I dont really see the difference between a stage 2 and stage 1 map?)

    with my previous fueling on the timing this is the knock voltage line @ 6700RPM

    CYL 1:-3, CYL 2:-5.25, CYL 3:-6, CYL 4:-9 LAMFA was 0.89 desired / 0.87 actual (maybe borderline protection?) and timing reduced from 24 BTDC on the map to 16.5 BTDC actual - EGT almost maxed out @ 889 - so hopefully the extra fuel should help this out.

    upload_2018-5-21_22-7-11.png


    upload_2018-5-21_22-7-33.png


    As the load appears to be totally different on this car compared to my old S3 - I dont see the point in posting it as it will just confuse everyone - maybe after the FMIC is fitted the LOAD to PSI to MAF readings will be more in tune with expected calculations.
     
  18. Stuart B

    Stuart B Well-Known Member

    2,750
    582
    113
    oh dear - it felt like it was going so well - I am lucky I didn't break a rod I reckon.

    http://my-worst-car.co.uk/ecuLogs/runoneloadtoolow23_26secs.csv

    I think the load line is too low now to go with the rest of the map? - the load sort of overtook the maximum load then hardly any power "like it had a puncture" then a sudden increase? you can see it in the logger between 23-26 seconds - this is a lot worse than the previous map with some timing but with no fuel and more engine load.

    normal driving about town feels great very responsive - I wonder if it ran out of fuel for a few seconds?
     
  19. Stuart B

    Stuart B Well-Known Member

    2,750
    582
    113
    okay so this is what the chart looks like you can see the actual boost drops totally off @4500? (like a leak) but a leak wouldn't suddenly recover from 9psi back to 18psi @5500 - would it? it's like an N75 failure?

    upload_2018-5-23_22-9-21.png
     
  20. badger5

    badger5 www.badger5.co.uk Site Sponsor

    9,796
    2,163
    113
    intervention more like
     
  21. Stuart B

    Stuart B Well-Known Member

    2,750
    582
    113
    Thanks Bill, Hmmm I was wondering, so it essentially dropped to the knock load map then jumped back onto the normal map.

    So I will roll it all back to stock timing, BFV load and the more generous fueling, and if that is stable revisit the timing, my problem is lack of knowledge so I have been using the timing from my old S3.

    Thanks for your advice as usual :)
     
  22. IanPG

    IanPG Well-Known Member Silver Supporter Team Nogaro Blue Audi S3

    1,527
    641
    113
    remove all that calc HP stuff - makes it confusing! LOL

    put in knock, EGT's, intake airs etc into excel table
    lock the top line so when you scroll to where you're having the issue we can still see what the columns are referring to
     
  23. Stuart B

    Stuart B Well-Known Member

    2,750
    582
    113
    spreadsheet updated - you can see the boost just plummets at 23 seconds then smacks back in again at 26secs at the same time the engine load goes from 130 to 190 in 0.5 seconds.

    http://my-worst-car.co.uk/ecuLogs/runoneloadtoolow23_26secs.csv

    what seems to be happening is the engine load doesn't seem to be controllable by adjusting LDRXN I only had 173 in that column from 3500-5500 but the actual load waivered above then dropped back, I was trying to be conservative with this as with my S3 I put in building up to 210 and got 225 MAF readings, here I am putting in low(ish) numbers and the MAF readings are going over 200g/s up to 210g/s at only 175 load. it's as if the turbo is delivering more boost than expected? also I have been getting 18/19psi from load figures according to s4wiki should only be 14/15psi. ( I wonder if the previous owner replaced the turbo with an aftermarket one)?

    I will try another run with stock timing and BFV LOADs that should in all honesty only be 14psi - but with an 177 and 185 in there I reckon that will be 20psi @5000


    take this snippet from a previous run with stock timing and low load map.
    upload_2018-5-24_12-20-24.png

    I set a max charge pressure to 166 but the car was at 181 and about 18psi and 207g/s MAF that's about 260BHP but I only requested 166 LOAD?

    I hope someone hasn't put a "resistor" somewhere that is mucking around with signals?
     
  24. Rainbird

    Rainbird Active Member

    366
    225
    43
    I can't claim to know enough to advise on the mapping side of things but, from experience, it's always worth knowing exactly what's going on with your hardware setup before trying to push things further and before playing with software.

    If you're having any doubts/thoughts like that, even if they're only just a back-of-the-mind type thing, you'd do well to give everything a good look over. Even if it just confirms what you thought originally, at least then you're working from a known point and can rule out niggling thoughts like that.
     
  25. Stuart B

    Stuart B Well-Known Member

    2,750
    582
    113
    I hear you brother I have had the car for 5 months now and done about 4000 miles - it's just "odd" in its behaviour, the car should follow a pattern and usually with age you wouldn't expect it to make too much power for the request.

    I wonder whether the actuator is weird?
     
  26. badger5

    badger5 www.badger5.co.uk Site Sponsor

    9,796
    2,163
    113
    if you raise request you will find on initial low rpm onset of spool its going to overshoot.. Even std car map will, but not by as much.
    whilst you have other limit boundary maps as std the interventions will be kicking in, which makes diagnosis tricky. Seeing boost overshoot however is easily fixable if its the onset which is "tripping" it up.
     
  27. Stuart B

    Stuart B Well-Known Member

    2,750
    582
    113
    okay so a 3rd gear pull today was "guided" by not flooring it - as I had a period in 5th gear on the way home before getting to the test straight where I lost power then it picked up (so the issue is still there with stock timing and a low load map). on my run where I gradually accelerated instead of just planting I didn't get an issue. I wonder if this might be causing my problem? could it be pulling on the foam hence the issue only under certain circumstances, can the air intake be able to restrict the boost pressure?

    upload_2018-5-25_19-32-7.png


    the run plot (obviously ignore the power figures it's the fact the lines are following a curve which is important)
    upload_2018-5-25_19-32-35.png

    the run file trimmed
    http://my-worst-car.co.uk/ecuLogs/stocktimingbfvload2.csv

    raw
    http://my-worst-car.co.uk/ecuLogs/stocktimingbfvload.csv
     
  28. A Banging Donk

    A Banging Donk New Member

    19
    0
    1
    The load is all over the place. To be honest, I think you should go back to the stock bin and start again.

    Don't start playing with timing until you have your fueling, load and knock sorted.

    Give us a full throttle run of your stock file to rule out potential H/W issues.
     
  29. Stuart B

    Stuart B Well-Known Member

    2,750
    582
    113
    So before I go back to stock BAM map, I compared my original TT map (STOCK) with a downloaded BAM stock map, from the BAM XDF items - I found a difference, not sure of the impact. but the TT Stock Map has the same setting as my previous S3 Map? is this potentially because the downloaded stock BAM map came from another country so needed a different parameter due to fuel quality? anyone know what this parameter is for?

    upload_2018-5-26_8-58-32.png
     
  30. badger5

    badger5 www.badger5.co.uk Site Sponsor

    9,796
    2,163
    113
    thats just your fuel scaler tho.... not load
     
  31. Stuart B

    Stuart B Well-Known Member

    2,750
    582
    113
    yeah the load levels are the same, I was just trying to make sure my starting point of a map hadn't already been changed in case related to the weirdness.

    upload_2018-5-26_11-3-17.png

    will do a log from this stock position to see if it's all over the place or stable.
     
  32. Stuart B

    Stuart B Well-Known Member

    2,750
    582
    113
  33. Avatar

    Google AdSense Advertisement


  34. A Banging Donk

    A Banging Donk New Member

    19
    0
    1
    Looks OK from here, notice how you have no room for timing advance up top.

    run1_timing.png

    Now you can enrich to ~0.85 (12.5) gradually across the rev range, continuing the stock curve. Mine looks like this

    LAMFA.png

    This should take care of the timing pull at 5000+. Take more logs, check the injector duty cycle and then we can start increasing LDRXN
     
  35. Stuart B

    Stuart B Well-Known Member

    2,750
    582
    113
    Maybe this BAM is just a bit quirky, putting our more power than expected.

    I was going to put my previous fueling map back. Is it too much?

    Screenshot_20180526-152948.png
     
  36. badger5

    badger5 www.badger5.co.uk Site Sponsor

    9,796
    2,163
    113
    fueling nice for controller low egt's
     
  37. A Banging Donk

    A Banging Donk New Member

    19
    0
    1
    Your previous LAMFA is fine for the 100% row, I think changing the values in other rows is a bit useless.

    MAF g/s is higher than you'd expect, my only guess is that this is due to the intake mods flowing well? Doesn't really matter, just squeeze what you can out of it without maxing injectors or timing pull and you're golden
     
  38. Stuart B

    Stuart B Well-Known Member

    2,750
    582
    113
    I know we are not really supposed to talk about mapping in too much detail on ASN, but I do appreciate the invaluable experience and advice from you guys. below is the fuelling grid I have patched, I will take it for a spin tomorrow to see if the knock voltage is reduced under higher revs. sometimes it is sensible to go back to basics and make baby step changes (I am still awaiting to fit my 3in DP and FMIC - so please keep in mind essentially I am only going for a stage 1+) rather than pushing the limits.

    in all honesty as long as I have the confidence to put my foot down to overtake a van on an A road without fear of intervention cutting in I will be happy. I did read a comment from WAK on the tt forum where some boost leaks are only prevalent at 1.5 bar, so I suppose there is still the potential for that?! once stuff settles at home and my daughters wedding is done and dusted (that's not "over" but "they are married and we are all home again") I will revisit the hardware and remove the 249 simplify the PCV and fit the FMIC, I am still in two minds over whether I want to change the DP myself due to the steering rack bolts quite "snappable" and it needs aligning afterwards too... so...?

    upload_2018-5-26_19-29-42.png

    I am a little annoyed that when intervention cuts in, it doesn't have some form of indicator / event history that it switched maps for a moment, I still wonder whether the setup struggles over say 16psi! maybe it has instability - I have never adjusted/replaced an actuator before but wonder whether this is a potential issue, and the turbo is trying to create 18 psi but the penny has been forced open momentarily. I think I recall reading a comment from Tuffty a couple of years ago about the throttle plate being blown shut, or the boost pressure and mixture being too much for the spark plugs?
     
  39. Stuart B

    Stuart B Well-Known Member

    2,750
    582
    113
    okay so I reckon today the logs are being affected by the IAT (~40) but the second run had very little knock voltage (and the MAF readings are more what I would expect for a stock BAM eg 185g/s instead of 193g/s so I will do another run in a day or so then start to tweak the load - also the car was different eg a passenger and shopping in the boot (passenger was in the seat ;)) compared to yesterdays test.

    http://my-worst-car.co.uk/ecuLogs/stockmapwithfuelrun2.csv

    upload_2018-5-27_14-47-10.png
     

Share This Page