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Thread: Help with Active Exhaust valve control on 6th gen Camaro SS

  1. #21
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    Quote Originally Posted by Auto-Hentzschel View Post
    should I write the FSCM? even it it say me brakeable?
    The FSCM flash takes a few seconds. As long as your laptop battery or car battery does not die in that instant, you will be fine.

  2. #22
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    I have the CCM304 licensed for my 2015 C7 Z51 but I have no NPP controls. The only thing I can do is disable the AFM DTC's. Are there plans to add NPP control or is this only for newer models?
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  3. #23
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    What is NPP?

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    Quote Originally Posted by Engineer@HPT View Post
    What is NPP?
    NPP refers to the valves (not AFM valves) in the GM exhaust for Camaros and Corvettes that allow you to change it from Tour, Sport, Track modes. Exactly what the OP is posting about in this thread. 2014+ Corvettes and 2016+ Camaro's use these new NPP valves that work by electric motor, controlled by the CCM, rather than vacuum controlled.

    So my question was basically how come I can't modify this on my 2015 C7?
    Last edited by TriPinTaZ; 06-07-2018 at 02:16 PM.
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  5. #25
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    Quote Originally Posted by TriPinTaZ View Post
    NPP refers to the valves (not AFM valves) in the GM exhaust for Camaros and Corvettes that allow you to change it from Tour, Sport, Track modes. Exactly what the OP is posting about in this thread. 2014+ Corvettes and 2016+ Camaro's use these new NPP valves that work by electric motor, controlled by the CCM, rather than vacuum controlled.

    So my question was basically how come I can't modify this on my 2015 C7?
    The C7 uses a different controller type. I have it in my queue now and plan to look at those controls in the near future.

  6. #26
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    Quote Originally Posted by Engineer@HPT View Post
    The C7 uses a different controller type. I have it in my queue now and plan to look at those controls in the near future.
    Thank you for the clarification
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  7. #27
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    Good news - I have located the controls for Corvette/ATS-V guys. Will be available in the beta sometime next week.

  8. #28
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    Quote Originally Posted by Engineer@HPT View Post
    Good news - I have located the controls for Corvette/ATS-V guys. Will be available in the beta sometime next week.
    Fantastic! Appreciate your efforts on this.
    2022 Cadillac CT5-V Blackwing (733 whp)
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    2000 Bonneville SSEi (first 3800 Bonneville in the 10s), 10.711 @ 125.71 mph
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    1998 Grand Prix GTP (first 3800 FWD in the 10s), 9.499 @ 145.13 mph

  9. #29
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    Quote Originally Posted by Engineer@HPT View Post
    Good news - I have located the controls for Corvette/ATS-V guys. Will be available in the beta sometime next week.
    That's awesome, thank you.

  10. #30
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    For the C304 guys, please download VCM Suite 4.1.062 beta from the website and give it a try.
    Would appreciate a log showing the Exhaust Valve pids while driving:

    Exhaust Valve Open Range
    Exhaust Valve Closed Range
    Exhaust Valve Gear Lookup
    Exhaust Valve Performance Mode
    Exhaust Valve Status
    Exhaust Valve Open Threshold
    Exhaust Valve Closed Threshold
    Exhaust Valve Enabled
    Exhaust Valve Start Rumble Active

  11. #31
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    Quote Originally Posted by Engineer@HPT
    please download VCM Suite 4.1.062 beta from the website and give it a try.
    Very much appreciate you adding the exhaust baffle parameters. However, I cannot seem to locate them anywhere within beta version 4.1.62 for 2016, 2017 or 2018 Cadillac ATS-Vs. I scanned every page, and have done searches for the words ‘exhaust’, ‘baffle’ and ‘valve’. Should there be an Active Exhaust section on the System > General tab?

  12. #32
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    Quote Originally Posted by Engineer@HPT View Post
    For the C304 guys, please download VCM Suite 4.1.062 beta from the website and give it a try.
    Would appreciate a log showing the Exhaust Valve pids while driving:

    Exhaust Valve Open Range
    Exhaust Valve Closed Range
    Exhaust Valve Gear Lookup
    Exhaust Valve Performance Mode
    Exhaust Valve Status
    ?
    Exhaust Valve Enabled
    Exhaust Valve Start Rumble Active
    The latest version I get is 4.1.23 when using the auto update under the "about" tab. But when I downloaded from the site the version was 4.1.62. I'll give this a try and see if I can datalog those PIDs tomorrow. However, I only see 5 PIDs rather than 9.

    Exhaust Valve Open Threshold
    Exhaust Valve Closed Threshold
    Exhaust Valve Status
    Exhaust Valve Enabled
    Exhaust Valve Start Rumble Active

    Also, the exhaust valve settings in HPTuners is very ambiguous. 12 different modes by what I can only guess is gear?
    Last edited by TriPinTaZ; 06-10-2018 at 09:26 PM.
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  13. #33
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    Quote Originally Posted by TriPinTaZ View Post
    The latest version I get is 4.1.23 when using the auto update under the "about" tab. But when I downloaded from the site the version was 4.1.62. I'll give this a try and see if I can datalog those PIDs tomorrow. However, I only see 5 PIDs rather than 9.

    Exhaust Valve Open Threshold
    Exhaust Valve Closed Threshold
    Exhaust Valve Status
    Exhaust Valve Enabled
    Exhaust Valve Start Rumble Active

    Also, the exhaust valve settings in HPTuners is very ambiguous. 12 different modes by what I can only guess is gear?
    Newest beta (4.1.064) should fix the missing 4 PIDs. Those 4 parameters will help identifying which table, row and column you need to adjust. Once I get a log from one of you, I can label the axes better.

    Exhaust Valve Gear Lookup will identify the row (0-12) used in the Exh Valve Close and Open tables.
    Exhaust Valve Performance Mode will identify which mode the car is using in the Exhaust Rumble Enable table, as well as Exh Valve RPM Thresholds.
    Finally, Exhaust Valve Open Range and Close Range Lookups will identify the column in the RPM Thresholds table, which is then used for the Valve Close/Open tables.

  14. #34
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    Quote Originally Posted by Engineer@HPT View Post
    Newest beta (4.1.064) should fix the missing 4 PIDs. Those 4 parameters will help identifying which table, row and column you need to adjust. Once I get a log from one of you, I can label the axes better.

    Exhaust Valve Gear Lookup will identify the row (0-12) used in the Exh Valve Close and Open tables.
    Exhaust Valve Performance Mode will identify which mode the car is using in the Exhaust Rumble Enable table, as well as Exh Valve RPM Thresholds.
    Finally, Exhaust Valve Open Range and Close Range Lookups will identify the column in the RPM Thresholds table, which is then used for the Valve Close/Open tables.
    OK I'm going to install .064 and take a datalog this afternoon for you.
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  15. #35
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    FYI, still don't have any additional PID's in VCM Scanner Beta Version 4.1.64. I have the same PID's as I did in 4.1.62. I'll still take a datalog today after work.
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  16. #36
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    I'm still missing those 4 PIDs on my car (2016 Camaro SS) on the latest 4.1.64 beta.

  17. #37
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    Quote Originally Posted by EMTNLSS View Post
    I'm still missing those 4 PIDs on my car (2016 Camaro SS) on the latest 4.1.64 beta.
    The extra 4 PIDs are only available on the C304/C304A controller at this time. You have a different controller.
    We may look into those later but I believe once a log is posted here from C304, it will help clear up the strategy used in your controller as well.

  18. #38
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    Quote Originally Posted by TriPinTaZ View Post
    FYI, still don't have any additional PID's in VCM Scanner Beta Version 4.1.64. I have the same PID's as I did in 4.1.62. I'll still take a datalog today after work.
    I'm assuming you have a C304 controller? If so, you may need to repoll the parameters. If that does not work, please email a VCM Suite infolog to support taken while connected to the vehicle then post the ticket number.

  19. #39
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    Quote Originally Posted by Engineer@HPT View Post
    I'm assuming you have a C304 controller? If so, you may need to repoll the parameters. If that does not work, please email a VCM Suite infolog to support taken while connected to the vehicle then post the ticket number.
    Yes I have a cc304. I will do a repoll and see if the extra PIDs show up after.
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  20. #40
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    Quote Originally Posted by Engineer@HPT View Post
    The extra 4 PIDs are only available on the C304/C304A controller at this time. You have a different controller.
    We may look into those later but I believe once a log is posted here from C304, it will help clear up the strategy used in your controller as well.
    Yea a log of those PID's would definitely help as I'm having a hard time figuring out when those 12 tables are used and what ones are used depending on the different factors.