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Type: Posts; User: steveo

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    yeah it’s pulled from a living chip ill build a...

    yeah it’s pulled from a living chip
    ill build a converter soon
    i have a new 8051 ecm coming thanks to a really awesome eehack user
    ill backtrace those stupid address lines and eehack will be able...
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    oh also make sure the ecm has been booted up for...

    oh also make sure the ecm has been booted up for a little bit (30 secs i think?). before flashing
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    your aldl comms might be sketchy, but is it...

    your aldl comms might be sketchy, but is it throwing any DTC errors?
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    blue plug tside red plug eside by the way

    blue plug tside red plug eside by the way
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    nice! the guys that originally developed this...

    nice! the guys that originally developed this program probably had a 486. nothing wrong with old hardware.

    if it doesn't boot at first, after you ensure your socket is good, remember the height...
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    amazon will have a usb to parallel or pci to...

    amazon will have a usb to parallel or pci to parallel solution on your doorstep overnight for like 15 bucks

    there is a usb to anything adapter these days
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    definitely go for it then! if you score a 2.2...

    definitely go for it then!

    if you score a 2.2 efi distributor that might make a better trigger? and run proper ecm controlled spark

    things like the coolant temp sensor will be the least of...
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    if you dont need to tune it and you just want...

    if you dont need to tune it and you just want injection without a ton of trouble, there is a fuel injected 2.2 that mazda made in later trucks. at one point i had both engines and they were damn...
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    sure am, was it just bricked during a reflash?

    sure am, was it just bricked during a reflash?
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    wanted 8051 lt1 ecm

    want to get ahold of another lt1 ecm for development

    it can be dead (actually prefer it)

    premium paid if already socketed
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    my first dumbass thought was nipping the...

    my first dumbass thought was nipping the processor vss and reattaching it after. but im an ameture with this stuff and the chances of it catching fire are greater than zero.
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    the OP is the one who asked about this in the 4th...

    the OP is the one who asked about this in the 4th post
    so i answered
    others then discussed
    what’s the problem here
    you cant thread jack your own damn thread man
  13. Thread: IAC steps

    by steveo
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    no, in your experience (and everyone elses),...

    no, in your experience (and everyone elses), sufficient airflow through the idle passages helps "fix the split BLM value at idle on a LT1"

    idle air is the sum of the idle bypass hole plus the IAC...
  14. Thread: IAC steps

    by steveo
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    if you open the throttle plates the IAC counts...

    if you open the throttle plates the IAC counts should go down, not up.

    i don't see a problem, why are you even playing with it, your IAC counts sound fine ?

    iac counts aren't some tuning...
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    there's a header on the board with each pin...

    there's a header on the board with each pin leading directly to the chip, probably GM designed it for programming on-board, however it's unclear how/if it works. it's definitely not something i'd...
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    wow i never realized the burn2 was such a limited...

    wow i never realized the burn2 was such a limited programmer, that's too bad. might not work. unclear if it's a software limitation or what
  17. Thread: IAC steps

    by steveo
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    what's the lowest IAC count you've observed?

    what's the lowest IAC count you've observed?
  18. Thread: IAC steps

    by steveo
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    for your LT1? the important thing is that most...

    for your LT1? the important thing is that most of your idle air comes through the idle passages and not the throttle plates, so the LT1 should have its throttle plates pretty much completely...
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    nah never finished that project. believe me if i...

    nah never finished that project. believe me if i did i'd be offering low cost repair services for these ecms. maybe one day when i get another test bench ecm going
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    depends what you mean by ok i didn't look too...

    depends what you mean by ok

    i didn't look too carefully,

    the decel does look correct now

    your idle fuel trims are a bit off, maybe your idle fueling could use a bit o' work, but who knows. ...
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    should be fine. is it idling okay?

    should be fine. is it idling okay?
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    35? where did you get that number? LT1s run...

    35? where did you get that number?

    LT1s run better with more through the IAC and less through the throttle plates. i usually like to see 50+ at hot idle if not more, but you definitely want to...
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    glad that did the trick. the parameters i put in...

    glad that did the trick. the parameters i put in that bin were mostly stock and will still save you a ton of fuel, id probably just leave them assuming the transition is smooth
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    nah, it's exactly the same except for the DFCO...

    nah, it's exactly the same except for the DFCO which only works when you're decelerating heavily while rolling
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    there's definitely something crazy going on...

    there's definitely something crazy going on there.

    there's nothing in your spark tables to warrant that small spark advance so it MUST be using the DFCO spark retard even though your injectors...
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