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Thread: Issues with 7.51

  1. #1
    Member VT LS1 NZ's Avatar
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    Question Issues with 7.51

    Any one else having issues with 7.51.

    *Everytime I go to start the car while logging my speedo jumps to about 45 km then when it starts it stays at 243km .

    *Also I get a bogus DTC P0000 come up.
    If I look at it via V2 its not there but on the laptop it is.

    Ive downloaded and reinstalled in fact Ive used a different laptop.
    No problems if I go back to V7.42(533)

    *Also did anyone get the maps to Automatically load using *.mls
    856RWHP 408 Supercharged LS1 Holden Commodore.

  2. #2
    Lifetime Member Chevy366's Avatar
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    Quote Originally Posted by VT LS1 NZ
    Any one else having issues with 7.51.

    *Everytime I go to start the car while logging my speedo jumps to about 45 km then when it starts it stays at 243km .

    *Also I get a bogus DTC P0000 come up.
    If I look at it via V2 its not there but on the laptop it is.

    Ive downloaded and reinstalled in fact Ive used a different laptop.
    No problems if I go back to V7.42(533)

    *Also did anyone get the maps to Automatically load using *.mls
    Don't have a issue with Scan Tool that I have seen , but do get the False P0000 codes .
    I had the 7.5.1 build (21) and it worked great , so did not think twice about updating to 7.5.1 build (24) .
    joecar answered me with in a post with the topic "Reset DTCs" have a look .
    http://forum.efilive.com/showthread.php?t=6654
    2005 1500 HD , Custom OS3 SD tune .
    2006 Trailblazer
    Dinosaurs and Plants gave their lives so that we may drive , long live fossil fuel .

  3. #3
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    are you on about the actual car speedo? If so its a common problem on the UK Monaros on both ls1 and ls2's - seems a problem with the unit which can be, after much arguing, changed on warranty.

    I've been sat still doing 220mph. It appears a few restarts cures it and the problem doesnt appear for months, very random and rare.


    OF course you can ignore that if you are on about te scan tool reporting incorrect speed

  4. #4
    Member VT LS1 NZ's Avatar
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    Quote Originally Posted by stigmundfreud
    are you on about the actual car speedo? If so its a common problem on the UK Monaros on both ls1 and ls2's - seems a problem with the unit which can be, after much arguing, changed on warranty.

    I've been sat still doing 220mph. It appears a few restarts cures it and the problem doesnt appear for months, very random and rare.


    OF course you can ignore that if you are on about te scan tool reporting incorrect speed
    No its the Scan tool but thanks for your input.The scan tool speedo will jump to 45km while cranking then once started jumps to a high value .
    Normally I'm able to work most things out before posting.
    It happening on two laptops using the last two releases.
    Ive prove it to EFILive_Scan.exe & obdiiV7.dll files.
    Ive gone back to 7.4
    856RWHP 408 Supercharged LS1 Holden Commodore.

  5. #5
    Joe (Moderator) joecar's Avatar
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    I'm not able to get the *.mls map-autoload thingo to work...

  6. #6
    Lifetime Member Bruce Melton's Avatar
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    I have the 36-38 MPH speedo problem with LS1 OS.

    2000 C5 Coupe, 6M, Callies/Mahle stroked LS7 (441), Blackwing, Halltech, LS3 intake, 90mm Shaner TB, ported L92 heads, FAST 50# inj, not too much cam, Kooks 1 7/8" headers , 3" catless mid pipes, Z TIs, track suspension, , 3:90 rear, EFI V2, LM-2, etc.
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  7. #7
    Lifetime Member hquick's Avatar
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    I get the P0000 codes also.
    Howard

    YOU ONLY NEED TWO TOOLS IN LIFE - WD-40 AND DUCT TAPE. IF IT DOESN'T
    MOVE AND SHOULD, USE THE WD-40. IF IT SHOULDN'T MOVE AND DOES, USE THE
    DUCT TAPE.
    IF YOU CAN'T FIX IT WITH A HAMMER, YOU'VE GOT AN ELECTRICAL PROBLEM.


    98 K1500 'HOLDEN' Suburban.
    Custom Whipple SC, Mercruiser Marine intake, 0411 PCM, 4L80E w/shift kit

  8. #8
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by hquick
    I get the P0000 codes also.
    Paul's on it: showthread.php?p=58313#post58313

  9. #9
    Lifetime Member hquick's Avatar
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    Yeah...found that thread. Thanks Joe.
    Howard

    YOU ONLY NEED TWO TOOLS IN LIFE - WD-40 AND DUCT TAPE. IF IT DOESN'T
    MOVE AND SHOULD, USE THE WD-40. IF IT SHOULDN'T MOVE AND DOES, USE THE
    DUCT TAPE.
    IF YOU CAN'T FIX IT WITH A HAMMER, YOU'VE GOT AN ELECTRICAL PROBLEM.


    98 K1500 'HOLDEN' Suburban.
    Custom Whipple SC, Mercruiser Marine intake, 0411 PCM, 4L80E w/shift kit

  10. #10
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    Any fix for this yet as it has my airbags disabled? Don't even have any SI Sensors on my truck.
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    2017 Camaro SS, 2014 Ram 2500 4x4 Cummins 6.7L, 2004 Chevy Avalanche Z71 4̶X̶4̶(now 2WD), 5870lb race weight, 10.93@ 124, Twin TVS1900s, Twin Throttle, 429 LSX, 4L80E, custom 14 bolt rear, V2, R̶o̶a̶d̶R̶u̶n̶n̶e̶r̶(dead), COS3......
    Gettin' the Groceries

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