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  1. As far as I know there are no settings that will...

    As far as I know there are no settings that will make the ecm control the alternator if the other systems are not present.
    You can disconnect the 2 wire connector from alternator and it should...
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    Have not seen any settings regarding that and...

    Have not seen any settings regarding that and they are probably not available since the L83 always came with a FPCM and fuel pressure sensor. Maybe try a nonreturn valve on the pressure line to keep...
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    There are more torque values to log but after...

    There are more torque values to log but after looking at the tune I would suggest to raise the trans and axle torque limits. Also zero out acceleration based rpm limit (12067). Then make a new log...
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    This thread explains PCA pressure. ...

    This thread explains PCA pressure.

    https://forum.hptuners.com/showthread.php?18561-A6-(6L80)-Scanner-parameter-questions

    "there is an option to cal the pressure tables as line pressure or as...
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    Yes, connect scanner and log fuel pressures,...

    Yes, connect scanner and log fuel pressures, desired pressures, injector pw etc to see whats going on. How is your low pressure fuel system set up? Also check for DTCs.
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    As I understand it, problem with bigger cam is...

    As I understand it, problem with bigger cam is later exhaust closing. If you increase numbers in the SOI table the spray will start earlier and may spray when exhaust valve is not yet closed.
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    See if there are other oil pressure channels to...

    See if there are other oil pressure channels to log. I have 2 on my l83, one is most of the time at 0 but the 2nd is working.
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    I think 1000-1300rpm is normal. I would not focus...

    I think 1000-1300rpm is normal. I would not focus on the actual slip rpm as much as if it is increasing before/during/after the shift. It should show slip as the old clutch releases and new applies...
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    I had a similar issue but throttle closing. In...

    I had a similar issue but throttle closing. In your log you can see trans as the torque source during the timing pull. Guess it is either slip related or some torque value is exceeded. Log trans slip...
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    So made another attempt today and finally got the...

    So made another attempt today and finally got the abs light to stay off. Solution in this case, set the gear ratio change and transmission tables. Increase the vss tire rev under sensor calibration...
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    Thank you for info. Yes, I found some info about...

    Thank you for info. Yes, I found some info about similar cases but no real clear solution. Tech 2 would be able to fix the EBCM?
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    2008 silverado gear change ABS light

    Hello,
    Spent half day testing differnt settings and problem not solved. 2008 3500HD (duramax/allison), gear ratio changed from 4.10 to 4.88 and ABS + brake light comes on at 30mph. Tried the...
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    Looking at your log, the fuel trims on B1 are way...

    Looking at your log, the fuel trims on B1 are way up at 20-30% while B2 is at 0-5%. Vacuum leak?
  14. I am running 2016 os in a swap with no related...

    I am running 2016 os in a swap with no related issues, now even with a turbo. But this is with the FPCM.
    Do you get any fault codes?
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    Take a look at the GM upfitter manuals, there is...

    Take a look at the GM upfitter manuals, there is a lot of good info in those manuals, and you can probably find it there.
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    Had plenty of issues with discrete fan setting on...

    Had plenty of issues with discrete fan setting on E38 and E40 ECMs. What works in one setup may not work in another. Try settings from this file, I know they worked in that swap at least.

    100153
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    I used these pins: ECM X2 #45 Signal ECM X2 #64...

    I used these pins:
    ECM X2 #45 Signal
    ECM X2 #64 5V
    ECM X1 #20 Low ref

    Small update. VVE tuned again and even though max tq does not reach engine tq there seems to be no limiting at shifts since...
  18. Replies
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    Damn, it works! Thank you!! Tried earlier today...

    Damn, it works! Thank you!! Tried earlier today and it did not work at first, I did not fully max the values out, every value needed to be maxed out for this to work. I better read carefully next...
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    I think you are both on the right track. I...

    I think you are both on the right track. I checked some logs and the pressure ratio is off compared to the sensor BARO reading. Strange thing is I cant find the baro PID hp tuners use for their PR...
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    I would say if engine is limited by knock on...

    I would say if engine is limited by knock on gasoline at high load (not reaching MBT) and you switch to Ethanol, this is where you could add timing and make more power. If not there is probably no...
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    Yes, TIAP is now a 3 bar LS9 type MAP sensor. For...

    Yes, TIAP is now a 3 bar LS9 type MAP sensor. For TCIAP sensor I used the stock 1 bar, added cables to the ECM. Actually the TCIAP should be the new source for baro, but I am not 100% sure since I...
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    L83 turbo MAX tq way off

    I am stuck, had this engine running great in a swap vehicle, excellent drivability and quite fast at 7.90 1/8 mile with 3.08 gears.

    After adding turbo and tuning MAF and VVE tables I end up with...
  23. I had similar issue with a 2016 L83 swap and...

    I had similar issue with a 2016 L83 swap and support told me that on some platforms the FPCM is working as a slave only and everything is controlled from the ECM. Seems correct as I verified the...
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    Are you loosing any coolant? Read about a similar...

    Are you loosing any coolant? Read about a similar this issue a while ago. also on an engine with some mileage and issue was according to this TSB:...
  25. Cant check the file from here. Trans can request...

    Cant check the file from here. Trans can request fuel cut to lower engine torque during shifts, that may be the case?
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