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SimonSTI

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Everything posted by SimonSTI

  1. Hi, I've notice that since the last 4 events my lambda are going crazy to 6.X when in full throttle. I double check on the last log from last season in 2022 and they were ok. Not sure when exactly it started but look likes it's after car getting out of winter storage. O2 sensor is on the downpipe and I did change the insulation material over winter (from heat wrap to fancy heatshield material). O2 sensor is from the AEM Uego X serie, bosch 4.9LSU. Anybody with similar experience can confirm it could be the sensor? Other ideas to investigate look at? Map and log available here: 2023-06-05 Lambda issue Screenshots of end of 2022 logs and recent one in this post as well.
  2. Prior to the last firmware update I had the gearshift setup to Flat Foot shit on full throttle and blip on downshift. I was using a virtual aux that detected brake and clutch to trigger a blip of around 25% if I remember correctly, nothing fancy but it was doing the job for me. Can't seem to be able to get the blip on downshift back to work with new firmware. I went over all settings and tried a few things with no success. Any pointer or help appreciated. If you have a setup example you can share that would work as well. Here is a quick view of my current setting, I'm also including the map prior to the upgrade, current map and a logging session done during the last track and time event. Here is the link to download the file: https://1drv.ms/u/s!AlShENwUdCOZgsIcFn-lfBQH-u199Q?e=OrPgPp
  3. Quick feedback, reducing the Cut Decay Time from 400ms to 100ms solve the issue!
  4. Tx for the feedback I'll try it out over the week-end
  5. Sorry about the graph, I just updated it to see labels. If you look at the speed or at the accelerometer you see a significant hesitation. In the car it feels like you lift the throttle or hit slightly the brake.
  6. When I launch the car I often have a little hesitation at around 30-35kph. You can see this between 3:26 and 3:27 on the graph. Any idea, pointer what could cause that? Here is the public folder with my map and the complete log: https://1drv.ms/f/s!AFShENwUdCOZgq5r
  7. Just got the car tuned on Ethanol, flex fuel map. I noticed that on my tablet dashboard the Ethanol sensor reads 0 for 12s before starting to read the real ethanol content in the fuel line. All other sensor (ECT, Fuel pressure, etc) reads instant when I put the key to ON. It's the Cobb sensor (think it's GM) wire on a DI input. I've not made a lot of test, but my guess is that the car will be very hard to start on higher ethanol content unless I wait 12s to crank it. Is that a normal behavior? Is there any setting that could help?
  8. In case someone is looking, switching to the HOA / Pierburg at 30Hz helped a lot, my Grimmspeed was probably getting old. I also added a little restrictor in that area in red (picture bellow), which helped give me way more resolution as well. I ended up with something like this: 5% 28psi 10%, 29psi 15%, 29.6psi 20%, 30psi 25%, 31psi 30%, 33psi 35%, 35psi I also tested the simpler setup that only push air on the lower port, worked pretty good also, but the recommended setup should get more flexibility to hold boost at high RPM. Good ref article: https://www.perrin.com/blog/post/boost-control-systems-explained-part-3
  9. I'm currently rewiring the EWG like suggested in the help file with a T fitting, full boost on the bottom port and using a solenoid to control boost on the top port. Turbo is connected on port 1, top port on port 2 and port 3 as an air filter on it. It's a grimmspeed 3 port (mac) and it's setup to 33hz. Just running open loop for now to get the data in before tuning in closed loop. I'm using a 10.15 psi springs setup, which net me around 27 psi MAP (13 psi boost). 0, 5, 10 and 15% duty cycle net me same boost level. At 20% I get up to 30-31 psi (15-16 psi boost) and at 25% it's boost creeping and hitting the map protection at 40 psi (25 psi boost). Car is tune in flex fuel, running around 15 psi on pump and will probably (not tune yet) run 20-22 psi on 70% ethanol. So would like to have the maximum resolution possible between 15 and 22 psi. Looks like it's way too sensible for now. Is that typical with these value? I'm a bit short on time and tuning this in the street is a bit time consuming, so looking for some pointer on what to try next. Reduce spring rate? Could my solenoid be broken (it's probably 10 years old)? I have another solenoid (Pierburg) I can swap to do some test as well. tx in advance
  10. Quick feedback that the latest firmware seem to fix the issue in my case. tx
  11. Quick feedback that the problem I had with the USB connection seems to be fixed with this update. Using a Surface Go 2 tablet with a USB-C connector. It was freezing under load before in hard pull.
  12. Do you recommend doing the base timing adjustment using the trigger calibration method on an EJ257 engine or we can simply use the default setting?
  13. Currently trying to setup this on my ECU. Using Can 1, which is already connected to my AEM Uego lambda gauge and working. I've setup it to 500kbit. I have the bus end resistor near the Uego gauge and the OBD2 connector is in the middle of the bus. OBD2 reader is OBDLink MX+, which support the ISO 15765 at 500kbit. The reader can't seem to connect to the ECU. I've tried reducing speed to 250 without any success. The reader seems to be able to detect the protocol used, but then look for vehicle identification and return an error after that. Did all the tests with the car not running but key on. Any ideas on how diagnose this further and find what is going on? Attaching a pictures in case someone see something (yellow is can high and blue is can low)
  14. SimonSTI

    Normalised knock

    Sharing my first result and asking a few questions on this feature. To give a bit of context car is a Subaru STI 2.35 engine, high compression 9.5:1, session done on pump 94 octane + 1 can of octane booster. Car was running super rich as I'm adjusting fueling after a lambda sensor swap. I used the recommended features in this thread as a starting point. (knock threshold at 2.0) Looks like cylinder 4 is knocking between 5000 and 6000 rpm quite often and cylinder 2 once in while. Between 2.5 and 3.0. Dash knock lite (turbo XS model) is not showing knock or I didn't notice, but I usually see it. My guess is that it's moderate knock event considering timing, rpm and fuel. Can someone confirm based on their experience if these knock level are moderate or high? Here is one example: Second question, on this track we use second gear in a slow corner. I get a RPM rate of around 1300 rpm per sec. in this corner. 3rd gear is more around 800 rpm per sec. What RPM delta should I target? Between 2 and 3 gear acceleration at around 1000 rpm or should I go higher to include 2nd gear like 1500? link to my map and log file: https://1drv.ms/u/s!AlShENwUdCOZgqxjBJqtFBGtWua5wA?e=dOyoX7
  15. SimonSTI

    Normalised knock

    Is there some documentation on that new feature with some guideline on how to set it up? I've read the updated help file and look at all the table, but still not 100% clear to me how to set it up properly. Do you have to setup the knock threshold table when using this mode?
  16. Nice list of upgrade! It's funny I just disable the fuel overrun after hours of investigation on why my blip on downshift did not work, works like a charm now, but I'll be able to enable it again with this update. Will have to wait until spring to test that out, it's winter here.
  17. Here is the logic I used, seem to work. 25s on cold start, 5s on hot restart.
  18. Can I use A8 and A11 as general output (most likely to trigger relay) ?? I don't have TGV, just want to make sure since they seemed to be linked together somehow seeing note in A9 and A10.
  19. I'm about to wire a new AEM uego sensor and I've seen a lot of recommendation to delay it's start, especially when the engine is cold to avoid thermal shock on the sensor. Would be really easy to wire on a relay controlled by the ECU. Just checking if some have done it? What would be the logic, something like 20sec. delay if ECT under 50 degrees?
  20. I have a 5 electric devices that would benefit from ECU control in the trunk. I'd like to have 1 can bus wire and a controller to simplify the wiring and avoid to much modification to the OEM wiring to scavange all output required to do so. I found this which should probably work: https://www.lingenfelter.com/product/L460370000.html#.X6LLjlBOlhE Any recommendation on other options? Anything similar for managing input and multi position switch?
  21. Average knock level to help adjust gain between cylinder.
  22. I though I could map an analog inputs to a DI GP input? Yes I have cruise control. So looking at the diagram looks like I could use DI10 which seems unused, but it is labeled as "main switch" on the OEM ECU? Is the neutral switch used anywhere in the ECU logic? It's not configured and doesn't seem to have any side effect at the moment, could be another option.
  23. I have a Cobb Ethanol sensor, which seems to be the same brand (GM?) as the Link one. Cobb use little electronic to convert to a 5V signal and is using the TGV input signal to send the info to the ECU. Could i use the digital signal directly from the sensor in the TGV input instead and get the fuel temperature as well by doing so? tx,
  24. Awesome, it works really well. I've updated the base position table following what throttle position the car was using at each ECT temp. Logs for warm up is too big to attach, sending throttle test engine off logs, idle test once engine is at temperature and a hot restart. Also including the updated map. PC Datalog - 2020-10-21 7;16;34 pm engine start.llgx PC Datalog - 2020-10-21 7;14;34 pm idle.llgx PC Datalog - 2020-10-21 6;57;07 pm throttle test.llgx Simon Gagnon-Subaru STI 2.35 G25-660 G4X-V1-5-2 throttle PID test Adam Value.pclx
  25. I did a few more logs to check what is happening with throttle with the car not running. Seems that TPS is always a bit off compare to the target. I'll investigate further and test a few things later. Here are 2 more logs if you have suggestion. Throttle body is from a WRX 2008 (one that goes with the plastic intake manifold). Default configuration from the v10 base map doesn't use I either, not sure if it's on purpose.
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