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Showing content with the highest reputation on 04/01/2021 in all areas

  1. Hi, The turbo will always provide more airflow then what the engine consumes, also at idle. If you measure the direction of air at the dumpvalve hose connection it will blow out. Any measured airflow from the MAF will read more then what really enters the engine. It will be a interesting test! 😎 // Turboforslund
    1 point
  2. When live data-logging in TunerPro, I assume you adjusted the formula for the wideband to match your AEM. This is why in the datalog, you will see the same values as the gauge. However, this formula does not change anything in the BIN, so it will use the original hard-coded venderbroeck calibration. Internally, the ECU does not even convert to AFR. It just gets a voltage, and will target whatever voltage the ECU deems to be 14.7. So if 14.7 on the original calibration was 2.35v, but the new AFR gauge is 14.2 AFR at 2.35v, the ECU will still target 2.35v and hence 14.2 AFR. Regarding
    1 point
  3. Hi, I use the Spartan 2 together with Boch LSU 4.9. I had a look at the logs and I got 12.6kg/h at idle. In the log you can see how the boost pressure is basically inchanged but the maf voltage gets really noisy (and AFR super rich). I checked my WB mod and have the exact same calibration settings as you stated earlier in your post. It is interesting that you use an "open" dumpvalve without a return hose. All the air that is measured by the MAF will not enter the engine and the engine will therby struggle to keep AFR stable. Can you try (as a test) to remove the dumpvale comp
    1 point
  4. Is your issue only at idle? Not sure if it's related but did those guys re-cal your WB mod bin for your AEM WB sensor? I.e. this issue:
    1 point