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Thread: Gen6 Camaro erratic logging of low side fuel press???

  1. #1
    Senior Tuner
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    Jun 2004
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    Baltimore, Md
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    Gen6 Camaro erratic logging of low side fuel press???

    Tried every pid available, seems like itll read in combination with some steady for a while delete a pid and then reads 0, no rhyme or reason just 58 0 57 0 57 57 0

    Look at Fuel Pressure as graph and the erratic jagged stuff is obvious
    Attached Files Attached Files
    Factory Stock 97 SS M6 13.51 @ 104.3 mph
    Stock Longblock LS1 w/ 233/238 P.S.I. Cam
    10.81 @ 126.9 Full interior, six speed on 275 radials, a decade ago

    '99 TA trunk mounted 76mm 6 Liter
    9.0s in '09 @ 153 MPH

    Turbo 5.3 Volvo 740 Wagon
    32psi and still winding out 5th on the highway somewhere

  2. #2
    Senior Tuner
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    May 2003
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    South FL
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    I think this is a bug with HPTuners. I seem to have solved it by doing the following:


    -Install the latest HPTuners Beta
    -Delete the PID
    -Connect VCM Scanner to the vehicle with Key on Engine Off and connect to the ECU
    -Use the Re-Poll for Parameters function and let it go through its re-poll
    -Disconnect from the car and close any open log files, but keep the VCM scanner up
    -Re-add the PID and right click after added and set polling interval to 10ms
    -Save you channel config
    -Start vehicle, connect VCM and start a log
    [email protected]
    Owner/GM Calibrator
    Gen V Specialist - C7 Corvette, Gen6 Camaro & CTS-V3

  3. #3
    Senior Tuner
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    How do they keep breaking features that worked fine for years? Like the TCC lockup button logic reversed on some Gen3 stuff when it was correct for 15 years LOL. Im pretty sure they are doing it on purpose at this point. I reallllly dont want to use version 5 software anything unless its a car that its supposedly "needed" for (GM global B C8 vette etc... which is a whole other debacle with them)
    Factory Stock 97 SS M6 13.51 @ 104.3 mph
    Stock Longblock LS1 w/ 233/238 P.S.I. Cam
    10.81 @ 126.9 Full interior, six speed on 275 radials, a decade ago

    '99 TA trunk mounted 76mm 6 Liter
    9.0s in '09 @ 153 MPH

    Turbo 5.3 Volvo 740 Wagon
    32psi and still winding out 5th on the highway somewhere

  4. #4
    Advanced Tuner
    Join Date
    Aug 2006
    Location
    Arizona
    Posts
    244
    The TCC button on the VCM scanner had me going for a little while. lol!! I definitely remember that one.
    2009.5 PBM G8 GXP M6 W/Roof-Self tune, OBX LTs, Kooks axleback, LSA blower, cam,
    Monster LT1-SC clutch, flex fuel, 12 psi [email protected] 1,800 D.A
    2007 TBSS-Self tune, bolt ons [email protected], 1,900 D.A
    1991 GMC Syclone- Self tune/catback 12.8@104, 4,200ft D.A

  5. #5
    Tuning Addict
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    Franklin, NC / Gainesville, Ga
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    Not trying to hyjack the thread or anything, but does anyone know if the tcc on/off button is working on gen V's right now? Doesn't seem to engage when commanded on trucks with 8 speeds.
    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

  6. #6
    Senior Tuner edcmat-l1's Avatar
    Join Date
    Aug 2006
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    5BA8
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    Might want to try emptying your vehicles file. That will force it to repole the PCM for pids. That alone may fix it.

    EFI specialist
    Advanced diagnostics, tuning, emissions
    HPtuners dealer and tech support
    email=[email protected]