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Thread: 94 corvette flashhack problem no reply from keepalive request

  1. #1
    Carb and Points!
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    Mar 2025
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    94 corvette flashhack problem no reply from keepalive request

    So I’ve been making progress on my 96 b body converted to obd1 and decided to try and fix a few things on my 94 corvette. But when I plugged into my vette and hit read calibration on flashback. It cycles my fan like normal. It says it connects but then it disconnects I get a warning box saying it fails to read kernel then I get a red banner at top of log section saying no reply to keepalive request then it disconecta then reconnects over and over and over again.
    What am I doing wrong? Do I need a different xdf file or ? The 94 is all stock with 94k miles.
    Hers a screen shot of the flashhack screen
    Attached Images Attached Images

  2. #2
    Fuel Injected!
    Join Date
    Mar 2013
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    Re: 94 corvette flashhack problem no reply from keepalive request

    Some debug log will help figure problems, looks like some module don`t stay quiet, Try pulling some fuses. You may have a ground issues too, that prevents stable communication.

    Some things to try, pull alternator connector, pull fuses for body modules, ABS, BCM, AC SIR. You want to get stable communication without constant reconnect.

  3. #3
    Carb and Points!
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    Re: 94 corvette flashhack problem no reply from keepalive request

    Ok. Thanks for reply. How do I run a debug log? And is there a list of uses or just start. Pulling in order? Also how would I tell if it’s a ground on or something staying on? Is there something like a patch or different bin files or xdf that differs from my b boy? I know when I run my snapon Zeus on my 96 impala. Only way I’ve found to look at scanner data for it is if I load it as a 94 corvette. It won’t load as a 94 or 95 b body. So o figured what ever worked on it. Would work on my actual 94 corvette.
    Also. EE$hack can data log no. Problem on the vette. I just can’t pull the Calibration off of it with flashhack. Not sure if that makes a difference.

    just seen the bottom of your post. Thanks I’ll try those things first.

  4. #4
    Carb and Points!
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    Re: 94 corvette flashhack problem no reply from keepalive request

    I was thinking about it. If my 96 is reading and writing ok. Can I put my y body pcm into my b body and read and rewrite it through the b body and put the pcm back into my vette when done?

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