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Thread: little help with 5.3 tune after camchange

  1. #1
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    little help with 5.3 tune after camchange

    log to send.hpl dont know if i attached the log right or not but was wondering if someone would look at it and tell me what they think .truck cranks and runs but has no throttle responce. its a 2012 silverado 5.3 , I just done a dod delete ,vvt delete. put a btr truck cam in it stage 3 . have deleted dod in tune and vvt in tune . its throwing dtc codes p0010,p3401,p3425,p3441,p3449log to send.hpl 0x543: U2100 - CAN Bus OFF (SES, Pending)
    0x7E8: P0010 - Intake (A) Camshaft Position Actuator Circuit / Open (Bank 1) (Pending, Current, Old, Permanent)
    0x7E8: P0446 - Evaporative Emission System Vent Control Circuit (Pending, Current, Old)
    0x7E8: P3401 - Cylinder 1 Deactivation/Intake Valve Control Circuit/Open (Pending, Current, Old, Permanent)
    0x7E8: P3425 - Cylinder 4 Deactivation/Intake Valve Control Circuit/Open (Pending, Current, Old, Permanent)
    0x7E8: P3441 - Cylinder 6 Deactivation/Intake Valve Control Circuit/Open (Pending, Current, Old, Permanent)
    0x7E8: P3449 - Cylinder 7 Deactivation/Intake Valve Control Circuit/Open (Pending, Current, Old)
    Last edited by mattsims639; 12-09-2023 at 05:08 PM.

  2. #2
    Tuner Guy With A Chevy's Avatar
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    You need to post the tune for quality help

  3. #3
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    I will when I get back home I thought I had but obviously not

  4. #4
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    You did install the correct front engine cover and have the right harness going to the cam sensor and right cam sensor in general?
    2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
    2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80

    ~Greg Huggins~
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  5. #5
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    Those are permanent codes. Going to guess you didn’t disable them before you tried to start it. They will never go away now.

  6. #6
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    Yes I installed the new cover

  7. #7
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    New timing gear and everything

  8. #8
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    Without pulling code info from SI, I might look into the U2100.

  9. #9
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    99% of those need to be set to no error. No longer applicable since VVT and DOD was removed
    2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
    2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80

    ~Greg Huggins~
    Remote Tuning Available at gh[email protected]
    Mobile Tuning Available for North Georgia and WNC

  10. #10
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    none of those codes would make a no throttle response besides the CAN fault. Maybe REP mode i suppose. My guess is the throttle isnt talking to the pedal. Just a pure guess.

  11. #11
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    Quote Originally Posted by ns158sl View Post
    Without pulling code info from SI, I might look into the U2100.
    igot the codes cleared wil you check this new log and see if you see anything 2nd log.hpl

  12. #12
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    Set those codes to "no reported error" and if youve actually disabled DOD, VVT, AFM then do a write entire without high speed.

    Post tune.
    "I don't care how it runs as long as it chop chops at idle"