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Type: Posts; User: tunerpro

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  1. Those codes being present, as you pointed out,...

    Those codes being present, as you pointed out, suggest that the FPDCM doesn't like the feedback its getting from the fuel pump. Once the diagnostics fail, all bets are off. The FPDCM in these...
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    Bad news... These use the new (secured) E88 ECM...

    Bad news... These use the new (secured) E88 ECM which isn't supported. :-(
  3. Thread: E82 ecu

    by tunerpro
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    2,598

    GM uses a common code base (and calibration...

    GM uses a common code base (and calibration tables) for all of their gas engine controllers, regardless of the hardware configuration. One analogy might be that Windows operating system has built in...
  4. The AA80E is NOT the same as the TL80-SN in the...

    The AA80E is NOT the same as the TL80-SN in the vsport though it is related. It's unlikely the vsport TCM would run the AA80E, and its certain the P01 won't talk to the vsport TCM... Hate to burst...
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    Mods that increase the exhaust sound can, in some...

    Mods that increase the exhaust sound can, in some cases, cause "false KR". Try putting your OE cats back on and see if it goes away.
  6. I think this would have a reasonably good chance...

    I think this would have a reasonably good chance of working - if your car was a 2014 or newer. The LF3/LF4 uses the E92, which is essentially a more powerful version of the E39 that's in your car. ...
  7. This. Enrichment mechanisms like COT were...

    This.

    Enrichment mechanisms like COT were part of the "whole package" when these engines were originally developed and tested under harsh conditions. If you disable any of them, you're running...
  8. There are different types of bluetooth protocols...

    There are different types of bluetooth protocols with different kinds of bandwidth limitations. The experts would have to comment on it but my suspicion is the v2 is bluetooth LE. This would be...
  9. Thread: E82 ecu

    by tunerpro
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    2,598

    There isn't one, unfortunately. I probed every...

    There isn't one, unfortunately. I probed every single pin marked "unused" in the service manuals. It would seem that GM didn't include the circuitry in the E82 for a flex sensor. :doh:
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    As soon as the C8 is supported. ;) Jokes...

    As soon as the C8 is supported. ;)

    Jokes aside, the technical challenges with the 2021 Tahoe are the same as it is for the C8, so expect it soon after C8 support comes along.
  11. Technically that ECM cannot be read, so a read is...

    Technically that ECM cannot be read, so a read is simulated. The message you're receiving, however, sounds like a wiring issue or a dead ECM.
  12. Thread: Flash counter

    by tunerpro
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    With all due respect, if your primary concern is...

    With all due respect, if your primary concern is warranty, don't touch it. Don't tune it, don't put wheels on it, don't even put aftermarket windshield wipers on it.

    I don't think hpt can "adjust...
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    Unless you like blowing your motor, stay away...

    Unless you like blowing your motor, stay away from crackles on these. There's a story out there about someone that was "crackle tuned" by one of the Cruze tuners and he went through 5 motors...
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    You can command more airflow over 5000 RPM, but...

    You can command more airflow over 5000 RPM, but other cal changes are needed to avoid misfiring and charge reversion. The so called "valve float" syndrome.

    Low speed pre-ignition is a phenomenon...
  15. Regarding the knocking, that's just what these...

    Regarding the knocking, that's just what these engines do. You'll get a good calibration running, and you'll find it still knocks audibly, seemingly randomly. It even happens on the stock...
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    Wow, I might actually purchase it if I wasn't too...

    Wow, I might actually purchase it if I wasn't too busy "kissing their collective butts". :p
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    That seems most likely. :D

    That seems most likely. :D
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    My money's on whatever they are doing: A)...

    My money's on whatever they are doing:

    A) Isn't a native reflash (maybe a piggyback?)

    B) Doesn't have anything to do with hpt. Because, otherwise the hpt folks would be making the...
  19. Not sure on the thermostat bypass, but according...

    Not sure on the thermostat bypass, but according to the factory service manuals, one of the oil cooler lines (outlet) attaches to the oil filter adapter, and the other attaches to the block just...
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    It won't work. I looked at this previously for...

    It won't work. I looked at this previously for the Chevrolet Colorado - in 2021 they switched from the T87A to the T93. While both TCMs are connector-compatible, GM also changed the way the shifter...
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    Your TCM is missing the solenoid characterization...

    Your TCM is missing the solenoid characterization data for the transmission it is controlling. This information is programmed when GM's service tools flash the TCM. If you didn't do this step...
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    I don't think this information is published...

    I don't think this information is published officially anywhere. Sometimes GM service bulletins will mention the ECU designation in passing, particularly when they're reporting that a specific ECU...
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    All LSY and L3Bs use the E01. The LT2 and LGY...

    All LSY and L3Bs use the E01. The LT2 and LGY are E99. I expect the LF4 and LT4 in the CT4/CT5 BW will be E99 also. L87 is E90, LM2 is E66
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    Put it back to stock tune. If it still fouls...

    Put it back to stock tune.

    If it still fouls plugs: Find a competent mechanic that can fix whatever is wrong the vehicle.

    If it doesn't foul plugs: Find a new tuner.
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    These vehicles use the T93 TCM. Not supported...

    These vehicles use the T93 TCM. Not supported (see the chatter in the V8 Transmission section about this TCM).
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