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Tim D

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Everything posted by Tim D

  1. It looks like the wastegate duty cycle table needs tweaking first, it doesn't look very tuned?. The I-term is having to do a lot of correction to maintain steady boost. Once it's tuned, the PID terms will have less work to do and it should make tuning a lot easier...
  2. I have had similar experiences to this. In my case, the internal log file has self-erased, as indicated by the parameter 'Log Memory Use'. I can't explain it.
  3. Tim D

    New ECU has died

    Thanks all for your help guys! It turned out to be fuse number 11 in a fusebox I didn't know existed! Hidden away behind the immobiliser keypad, which you have to pull off it's hinges to reveal the fuses. Apparently this fuse feeds Engine ignition system and SRS airbag. It pretty much immobilsed the whole car! Not sure why it blew, perhaps I have an underlying fault that will come back to bite me! Thanks too to https://shopbhp.com/ - great tech support as always
  4. Tim D

    New ECU has died

    Thanks guys, I will try your ideas. As it happens, when the problem occured, I tried the headlights (as a crude battery health check) and they appeared to be fine.
  5. Tim D

    New ECU has died

    Hello Link and anyone that can help... I installed a brand new G4+, model WRX107+ to my Subaru one month ago (S/N 2655). It initially worked fine, although the log file has self-erased twice, a problem that my previous ECU (WRX107+) had. Today, on turning the key, the engine started to crank and halted after about one revolution. The battery and starter motor were new a few months ago. Battery voltage with everything switched off is around 12.7 V and no previous issues. I can no longer hear the fuel pump priming with key on. I can no longer get my laptop to connect to ECU, previously this was fine. PCLink displays "Searching" whereas it previously connected quite quickly. Interrogating Windows device manager shows the ECU to be on COM1, so I tried configuring PCLink manually to COM1, but this did not work either. I tried all connection baud rates. If I interrogate the ECU, it reports "Unable to connect to ECU but USB connection is present. Please cycle power to the ECU". Cycling the power made no difference. I rebooted laptop, this didn't help. I tried attaching screenshot but got the message "You are only allowed to upload 501.76kB" Please can someone advise?
  6. Hi Warchild, Although I'm not familiar with your boost controller, I guess it doesn't run in closed loop mode, otherwise it should make the necessary adjustments to maintain target boost? Does the controller have any configurable settings apart from boost? I'd also assume that your factory ECU was running closed loop since you say it maintained boost better? You can have 3 boost tables in Link, so that could be an option (unless you really need 6 settings?) Re: What will the Link ecu do better by controlling the turbo than the GFB ? Taken from the Link help file... Advantage The main advantage to closed loop control is the boost pressure consistency. With open loop control tables are needed to compensate for changes in environmental conditions. The closed loop system automatically corrects the duty cycle applied to the wastegate solenoid to achieve consistent boost pressures in all conditions. The Link closed loop boost control strategy also incorporates open loop correction tables in the closed loop control mode. These are provided to help increase control loop stability. Disadvantage The main disadvantage to closed loop boost control is the difficulty to setup. Tuning the control loop requires experience and understanding of how the PID control algorithm operates.
  7. Hi there, I'm not familiar with the GFB boost controller, but is there a reason you're not using the ECU to do 'closed loop boost control'? I found it to work very well if you're prepared to spend a bit of time tuning the PID terms etc.
  8. Tim D

    Knock I-trim question

    Hi there, The Knk I-Trims are corrections to individual cylinders, hence the Ignition Angle remains unchanged. It would be interesting to see your tune too, it looks like cylinders 2, 3 and 4 are not detecting any sound, not sure why? Btw, I found it best to log at 100 Hz to capture these knock events otherwise you can miss them.
  9. Hi there, Here's an area you could look at... It appears that 4 degrees of timing is being pulled all the time due to incorrect knock detection. The Knock target table is using AP, whereas your AP is stuck at zero (maybe you don't have drive by wire?). I think this should use TP (not AP). Hope that helps?
  10. I think turning idle ign control OFF is a good starting point. I also think your idle ignition table is back to front... The timing should increase towards the right... (see extract from help file)...
  11. Might be worth a look at idle ignition setup. Could you post a .pclr file.
  12. Slight tweak to pic...
  13. Thanks for the feedback Adam, much appreciated. I did see the pic you mentioned and also saw the HPA webinar explaining about it which was very good. It took me a while to understand the various terms, hence I produced my pic to aid my understanding. Does my revised pic look correct now: Please could you also comment on my setup, screenshot and files attached. 682.llg 682.pclr
  14. Hello tuners and Link.......... After setting up the Advanced Launch Control tuning parameters on my Subaru, I came up with the following picture to help me understand what's what! Not saying it's better than the Link help file, but it helped me! Feel free to criticise if I have misinterpreted anything!!
  15. Tim D

    Closed loop lambda

    As far as I can see, the ECU is trying to add fuel, but I'm not sure what's making it go lean?
  16. I'd be interested to hear if anyone else has laggy software as I posted a comment a while ago about my issues... my laptop is pretty high spec and came with cortana. When switching this feature off, PCLink performance issues went away! I have not exhaustively proven this theory, but my laptop has been fine since... Ref:
  17. Dave, I initially thought that, but it is logged. See below... It's a bit strange though, if you type Batt in the parameter list, it doesn't appear as you'd expect! However, if you click on Batt Voltage, it's there! I can't explain that.......
  18. I would use a volt meter to measure the battery voltage (at the battery terminals) first. This should be around 12 V with the engine off and no electrical loads. Then start the engine and check that it goes up to around 14.3 V (as part of your log shows). This will narrow down where the problem is very quickly. Hope that helps...
  19. Tim D

    Logging status

    Hi, I've been working on a custom display and found that the ECU Logging status doesn't behave as I expected. When the memory is full, the logging starts overwriting the oldest data, but the logging status does not change state (from 1 to 3) to reflect this. Please can anyone enlighten me?
  20. I've also had a look, and have some comments in addition to Adam's... Would it benefit from tuning the wastegate table in open loop so that the control system has less corrections to do?
  21. Tim D

    Can lambda help

    That sounds right, I looked up this from the help file: For info, here's what my CAN settings show for CAN Lambda: Not sure if that help?
  22. Tim D

    Cortana

    Yes, the car was completely normal during this. Cortana comes with Windows 10. A quote from google... One of the standout new features found in Windows 10 is the addition of Cortana. For those unfamiliar, Cortana is a voice-activated personal assistant. Think of it as Siri, but for Windows. You can use it to get weather forecasts, set reminders, tell you jokes, send email, find files, search the Internet and so on. I haven't switched cortana back on to verify that the problem returns, guess I should for completeness...
  23. Tim D

    Cortana

    Has anyone experienced problems with data logging freezing/stuttering? Picture below showing what I mean (no activity either side of cursor). In my case, switching off cortana fixed the problem... (who wants cortana anyway?)
  24. Clint, how do you get EGT? Is this using the heater temperature if it goes above the regulation temperature of 780 C?
  25. Clint, you're a star, thanks for your help. The more I learn, the more I realise I don't know! With regards the overrun fuel cut, I use the filters on Mixture map to filter out any samples when this was active. I guess you don't approve of that method from what you say? Do you think I should keep 'IAT fuel trim' active during tuning (but all other corrections off)? As I see it, I need to compensate for inlet temps otherwise the tune will be wrong when the weather warms up? I always use V-Power or Momentum, so should I change my stoic value to 14.5, or keep it at 14.7 to cater for any fuel? Sorry for all the questions! Cheers Tim
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