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    Are you sure it's the right PCM? If it's been so...

    Are you sure it's the right PCM? If it's been so heavily modified, isn't there a chance someone swapped ECMs too? Having a totally wrong XDF would also explain it.

    But agreed with kur4o; just post...
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    Ah, fair enough. Guess it's yet another thing for...

    Ah, fair enough. Guess it's yet another thing for me to experiment with on my own. I enjoy that though so, hey!

    It took me a second to figure out why "key-in+key-on after CCM sleeps" would be a...
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    Have you tried shutting down all the ADC...

    Have you tried shutting down all the ADC registers before dropping into sleep? Apparently just using


    ADCSRA = 0;

    reduces power consumption by three orders of magnitude. It'd be like Sketch J...
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    Oh, no no, don't take my reply the wrong way; I...

    Oh, no no, don't take my reply the wrong way; I was in no way being critical of your code or suggesting that my method was better or anything like that. I was just noticing that I had a larger delay...
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    Okay, cool. Glad I had read it right. So why...

    Okay, cool. Glad I had read it right. So why would something creating an additional, not-accounted-for delay require increasing the existing delay? That's the only thing I'm confused about. That said...
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    Just to make sure I know what's going on here,...

    Just to make sure I know what's going on here, you have this line:


    #define TCNT3_TICKS 28 // 62.5us each 24 = 1.5ms
    ...
    OCR3A = TCNT3_TICKS; // set timer0 compare match register A
    ......
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    Haven't personally tested that one, but according...

    Haven't personally tested that one, but according to the reviews it's a real FTDI and is 5V logic, so it should be fine.
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    If your main battery voltage is jumping around...

    If your main battery voltage is jumping around wildly, then yeah, that sounds like your problem. Do check the grounds too, yeah.

    As for your homemade cable, it depends on how the cable was...
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    Well, if anything, this just proves how amazingly...

    Well, if anything, this just proves how amazingly robust Flashhack is; had you attempted to flash this PCM using TunerCats, you would absolutely have had a brick on your hands.

    Something is really...
  10. That is a very carefully-worded response. Read...

    That is a very carefully-worded response. Read the bill yourself: https://www.congress.gov/bill/117th-congress/senate-bill/2736/text

    As I posted above, what the RPM Act does is neuter the part of...
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    Our PCMs are notorious for failing randomly if...

    Our PCMs are notorious for failing randomly if you try to socket the flash chips. I certainly wouldn't be willing to try that on either of mine. It's why I have a test clip in case I "brick" anything.
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    Well, that's why you don't try to tune a car on...

    Well, that's why you don't try to tune a car on the street.

    Anyway, heard loud and clear. Your work is, as I already mentioned, leagues above anything else ever offered for $EE, so I look forward...
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    A few seconds update time is a hell of a lot...

    A few seconds update time is a hell of a lot better than 90 seconds when you're the one paying for the dyno time. I'm chasing the realtime thing because the C5 PCMs and later can do it with that...
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    Do we have enough space in the EEPROM for two...

    Do we have enough space in the EEPROM for two copies of the VE table? I think that's the largest of the engine tuning parameter tables?

    I was just thinking we could accomplish actual realtime if...
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    Correct; the pressure switch should remain closed...

    Correct; the pressure switch should remain closed unless system pressure is above or below its set point. If it is open right now, then first you need to confirm that the system pressure is actually...
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    They are, yes. Have you tried PCMforless?

    They are, yes.

    Have you tried PCMforless?
  17. Replies
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    Small note, but I was going through Flashhack 1.2...

    Small note, but I was going through Flashhack 1.2 and it appears the archive on your site also contains several BINs read out from EE test vehicles. I'm guessing they weren't actually intended to be...
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    According to what I've found so far, only the...

    According to what I've found so far, only the Delco ABS on the F-body actually does that; it sends a message over the UART to the PCM telling it about ASR events. This PCM function is disabled on...
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    I'm actually not entirely sure how the ABS/ASR...

    I'm actually not entirely sure how the ABS/ASR thing works, so good luck. I know that it freaks out and throws a Code 72 when you connect a scan tool like a Tech 2 or EEHack, but I'm not entirely...
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    You are correct, it's 6D. I'm not sure what my...

    You are correct, it's 6D. I'm not sure what my calculator was doing. I must've fat-fingered one of the bytes while doing the addition step. Good catch, and thanks for running the experiment! Looking...
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    You are correct, it's unnecessary. The F0 poll is...

    You are correct, it's unnecessary. The F0 poll is not "announcing bus master," it is "CCM is seeking external devices who wish to become bus master." It is not a mode, it is a unique device ID only...
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    What is an F0 mode? An undocumented feature of...

    What is an F0 mode? An undocumented feature of the CCM?

    Also why is your logger attempting to send a Mode 8 request before the CCM sends an F0 external device poll?
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    If I'm reading the definition correctly, Mode 0...

    If I'm reading the definition correctly, Mode 0 is "return everything to pre-tester state," while Mode 9 is "reenable regular ALDL polls." It would be interesting to know how they're actually...
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    Agreed with the above, sounds sound to me....

    Agreed with the above, sounds sound to me. Interesting though; if I'm reading you correctly, this means that even though I had things like VIN and Siderail Serial Number in TunerPro, they wouldn't...
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    Went ahead and tried it out. Read out my PCM...

    Went ahead and tried it out. Read out my PCM first just for giggles, that worked perfectly. Did DBG_C but it appears that routine doesn't actually have an exit coded in yet. It loads the program,...
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