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  1. Replies
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    Yes, the DTCs. I think why this comes up so...

    Yes, the DTCs.

    I think why this comes up so often is, with no cats, and no downstream sensors, and the cat test enabled, it tries to run the test on every single run cycle because without the rear...
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    Your file does have it... it's just been removed...

    Your file does have it... it's just been removed in Editor versions newer than 4.8.7.

    123082
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    Yep. 123079 If it has no cats that needs to...

    Yep.

    123079

    If it has no cats that needs to be off. Guessing they're gone since the downstream O2s are also turned off.

    In case you're stuck with one of the later software versions where...
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    Tune file.

    Tune file.
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    To turn a Trailblazer E40 into a Monte Carlo E40...

    To turn a Trailblazer E40 into a Monte Carlo E40 you must use TIS for the initial programming. After it has the right OS in it, all 8 segments, from then on you can use HP Tuners to flash it as many...
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    HPT tune files only contain 6 of the 8 segments....

    HPT tune files only contain 6 of the 8 segments. Must use GM TIS and J2534 to change OS like that.
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    Is that photo from ebay? I think so. There is no...

    Is that photo from ebay? I think so. There is no data for those injectors because they have been hacked on, by a hack.

    The largest injector of that style GM ever used in anything was 12613412, in...
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    Click this link:...

    Click this link: https://www.camaro5.com/forums/showthread.php?t=548319

    Scroll down to the second post.

    Right click on the attachment, 'BC_Trans.zip', choose 'Save file as...'

    The file saves...
  9. 123022

    123022
  10. Replies
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    You need to know the part number before you can...

    You need to know the part number before you can find the application that used it, there are several that use that body style so a picture isn't enough to identify which ones they are.
  11. Cam position circuit codes and 5vref codes are...

    Cam position circuit codes and 5vref codes are low priority?
  12. Different *operating systems* can have different...

    Different *operating systems* can have different tables defined, it can be different for different OS IDs even on the same vehicle - new stuff only appears in the next VCM release if it's been added...
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    Well, the shop still got paid, right?

    Well, the shop still got paid, right?
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    https://www.hptuners.com/my-account/tunerepository...

    https://www.hptuners.com/my-account/tunerepository/ (unless they helpfully redirect you to a country-specific site that has no files uploaded)
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    OK, so there's an edited diagram for single-stage...

    OK, so there's an edited diagram for single-stage fan(s) in post #2. Copy GTO fan settings bit-for-bit, even though GTO originally used 2-stage/3-relay setup, and it will 'just work'. The GTO has...
  16. Man, I reckon if somebody ever grows the balls to...

    Man, I reckon if somebody ever grows the balls to make a Stage 200 cam, it'd make enough powar to boil the tires even in park. I bet nobody makes those just cause they're scared.
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    With only a single wire from the ECM, you'll only...

    With only a single wire from the ECM, you'll only be able to get all fans on at 100% or all fans off, no matter how many relays or fans you have. Is that what you're wanting?
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    If there are no differences in your tune file and...

    If there are no differences in your tune file and the file from a known-non-RWS truck, then there's nothing you can do about it in HP Tuners. HPT doesn't access any of the non-powertrain modules.
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    Well good on ya for proving me & my cynicism...

    Well good on ya for proving me & my cynicism wrong! Seriously.

    Did you catch that the new OS changed the MAP linear/offset too? That'll for sure make it seem like the VE is way wrong if not...
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    If there are no catalytic converters there is...

    If there are no catalytic converters there is nothing that the downstream sensors will be able to measure and so you not only don't need them, it's now impossible for them to work. There are no cats...
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    There are some vehicles that use the downstream...

    There are some vehicles that use the downstream sensors for fueling in certain circumstances, but this is not one of them. GM's downstream sensors are for catalyst monitoring only.
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    Well the first one is for TCS issues when running...

    Well the first one is for TCS issues when running in SD mode. In contrast, the second one is for TCS issues when running in SD mode. So as you can see they are quite different. /s

    I guess if you...
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    Downstreams wouldn't function as downstream...

    Downstreams wouldn't function as downstream sensors without the cats anyway, they'd just mirror the upstreams since they'd be reading the same composition of exhaust gases.
  24. Um. What's up with those DTCs? Each one of those...

    Um. What's up with those DTCs? Each one of those could be fairly serious and not something to ignore while you play with knock sensors.
  25. Sorry, but what would you need to pull apart?

    Sorry, but what would you need to pull apart?
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