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Thread: 2008 Chevrolet Tahoe Hybrid support?

  1. #21
    Tuner
    Join Date
    Oct 2014
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    Moscow, Russia
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    Quote Originally Posted by ??? View Post
    do you think it would be able to say self correct and be able to run OK on a stock for a non late intake closing cam, like you'd put in a non hybrid doing a afm delete kit?
    It can run ok with any cam you want, but HPTuners is not a helper in such a job.
    E67A is just torque based version of E38/E67. It has two HSCAN buses and additionally uses 1MB of the internal MCU flash.
    It has same set of Virtual VE, Residual Mass Fraction and Virtual Torque Tables including Internal Engine and Accessory Torque Losses (mostly not available in HPT).
    Driver Demand in this ECM is Axle Torque which is transferred to and completely processed by TCM. TCM decides how to split requested torque between electric motors and gasoline engine.
    Entire Torque Model and Request area in ECM calibration is protected with extra checksum.

    You can swap even to LSA, but without TCM tuning you will have exactly the same torque request limitations as with the stock engine.
    TCM can be read with HPTuners as T43 so it has the same MCU, Flash/Ram memory map and even Seed/Key algo. But it is not supported for editing.

    P.S. And for heaven's sake, do not touch Speed Limit By Fuel in HPTuners for this ECM. It is Engine Hot Temperature Threshold actually
    2011 Cadillac Escalade L94 w/LS3 valves and valve springs

  2. #22
    Quote Originally Posted by verlon View Post
    It can run ok with any cam you want, but HPTuners is not a helper in such a job.
    E67A is just torque based version of E38/E67. It has two HSCAN buses and additionally uses 1MB of the internal MCU flash.
    It has same set of Virtual VE, Residual Mass Fraction and Virtual Torque Tables including Internal Engine and Accessory Torque Losses (mostly not available in HPT).
    Driver Demand in this ECM is Axle Torque which is transferred to and completely processed by TCM. TCM decides how to split requested torque between electric motors and gasoline engine.
    Entire Torque Model and Request area in ECM calibration is protected with extra checksum.

    You can swap even to LSA, but without TCM tuning you will have exactly the same torque request limitations as with the stock engine.
    TCM can be read with HPTuners as T43 so it has the same MCU, Flash/Ram memory map and even Seed/Key algo. But it is not supported for editing.

    P.S. And for heaven's sake, do not touch Speed Limit By Fuel in HPTuners for this ECM. It is Engine Hot Temperature Threshold actually

    very interesting. bit over my head, but I get the point of hp mods aren't going to do much since no access to the tcm settings.

    I haven't done it, but I did think about it since 90mph speed limits are a thing here. I will leave the speed limiter alone, but out of curiosity what does "It is Engine Hot Temperature Threshold actually" mean?

  3. #23
    Tuner
    Join Date
    Oct 2014
    Location
    Moscow, Russia
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    197
    Quote Originally Posted by ??? View Post
    out of curiosity what does "It is Engine Hot Temperature Threshold actually" mean?
    Just wrong definition for this parameter. What HPT thinks is "Speed Limiter" simply points to the other parameter.
    2011 Cadillac Escalade L94 w/LS3 valves and valve springs

  4. #24
    Tuner in Training
    Join Date
    Aug 2023
    Posts
    16
    Just rebuilt a 2007 L76 and AFM delete and the oil deflector makes all the difference.. problem is that you have to get the pan out!

  5. #25
    Quote Originally Posted by radjr View Post
    Just rebuilt a 2007 L76 and AFM delete and the oil deflector makes all the difference.. problem is that you have to get the pan out!
    did you put a non afm cam in it without any tuning of the ve tables you can't access? if so which cam and how does it run?