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Toyota Tacoma 3.4L K-Line ECU Reflash interest

Discussion in '1st Gen. Tacomas (1995-2004)' started by OVTune, Jul 25, 2017.

Page 2 of 19
  1. Jul 25, 2017 at 10:47 PM
    #21
    digitalferg

    #21
    digitalferg Well-Known Member

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    Pretty much ditto this for me. I'm in an '03 Tacoma with 5vz, SC and a TRD 7th kit.

    Definitely interested in hearing about what you can do @OVTune .
     
    digitalferg, Jul 25, 2017
    #21
    TashcomerTexas[QUOTED] likes this.
  2. Jul 26, 2017 at 8:17 AM
    #22
    Glamisman

    #22
    Glamisman Well-Known Member

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    I would be interested in a re-flash. I have an 03 reg cab 4cyl basic stripper for use in Baja and the fuel there is so bad that the CEL is on constantly. I wonder if there is a "Mexico" as opposed to the USA - California flash for the ECU.
     
    Glamisman, Jul 26, 2017
    #22
    otis24 and Dalandser like this.
  3. Jul 26, 2017 at 10:01 AM
    #23
    CanadaToy

    #23
    CanadaToy Well-Known Member

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    i think he is looking at 3.4's only...
     
    CanadaToy, Jul 26, 2017
    #23
  4. Jul 26, 2017 at 10:13 AM
    #24
    mechanicjon

    #24
    mechanicjon They call me "Jonny Stubs"

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    Sub'd
     
    mechanicjon, Jul 26, 2017
    #24
  5. Jul 26, 2017 at 10:21 AM
    #25
    frizzman

    #25
    frizzman Well-Known Member

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    I'm pretty sure the 4cyl never changed in Gen 1 aside from minor improvements. Only the V6 went to computer assisted throttle/cruise.

    sub'd for info for my '04 3.4 :D
     
    frizzman, Jul 26, 2017
    #25
  6. Jul 26, 2017 at 11:28 AM
    #26
    devinzz1

    #26
    devinzz1 Well-Known Member

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    why would earlier years not be possible?
     
    devinzz1, Jul 26, 2017
    #26
  7. Jul 26, 2017 at 11:54 AM
    #27
    TashcomerTexas

    #27
    TashcomerTexas My truck is a whiner

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    Could be wrong but maybe something to do with the drive by cable trannies up until 03-04.
     
    TashcomerTexas, Jul 26, 2017
    #27
  8. Jul 26, 2017 at 11:55 AM
    #28
    TashcomerTexas

    #28
    TashcomerTexas My truck is a whiner

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    I believe he can control the fuel maps, possibly shift points and other various maps.
     
    TashcomerTexas, Jul 26, 2017
    #28
  9. Jul 26, 2017 at 1:00 PM
    #29
    frizzman

    #29
    frizzman Well-Known Member

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    Only thing I know of there is no "kick-down" cable for the 03-04 trans like that on earlier >'02s. So this might have something to do with it :notsure:
     
    frizzman, Jul 26, 2017
    #29
  10. Jul 26, 2017 at 1:02 PM
    #30
    TashcomerTexas

    #30
    TashcomerTexas My truck is a whiner

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    Right. That's what I meant.
    The 03-04 transmission is controlled via drive by wire, or electronically. This makes sense therefore it is "hackable" and can be set to however the controller wants.
    The 95-02 transmissions are controlled via drive by cable so it's more manual - not something that can be adjusted through a controller.
     
    TashcomerTexas, Jul 26, 2017
    #30
  11. Jul 26, 2017 at 1:16 PM
    #31
    CanadaToy

    #31
    CanadaToy Well-Known Member

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    Actually it changed more than the 3.4 !

    Original's actually had a distributor! Then they went thru 2 different coil plug variations. they also have 4 port and 8 port heads / intake manifolds. Definitely a bit of a :crapstorm: :)
     
    CanadaToy, Jul 26, 2017
    #31
    frizzman[QUOTED] likes this.
  12. Jul 26, 2017 at 1:25 PM
    #32
    TashcomerTexas

    #32
    TashcomerTexas My truck is a whiner

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    Possible 3.4 mods based on the 4.0 and 3.5:

    Please don't forget the 3.4 has ECT too! I'm drooling at the possibilities over here.
    You also stated you can correct for bigger tires :fingerscrossed:
    Also waiting to hear what you can do about a supercharged w/ URD 7th injector tune and if they can coincide.
     
    TashcomerTexas, Jul 26, 2017
    #32
  13. Jul 26, 2017 at 1:27 PM
    #33
    TashcomerTexas

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    TashcomerTexas My truck is a whiner

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    TashcomerTexas, Jul 26, 2017
    #33
  14. Jul 26, 2017 at 1:36 PM
    #34
    tony2018

    #34
    tony2018 Well-Known Member

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    Potential future turbo member, or supercharge.
     
    tony2018, Jul 26, 2017
    #34
  15. Jul 26, 2017 at 4:55 PM
    #35
    Blackdawg

    #35
    Blackdawg Dr. Frankenstein

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    ALL OF THEM!...Then some more.

    Well my blower is going on my 03 when the v8 goes in frank.

    But I don't think you can do anything to our ecus. Nothing substantial anyways.
     
    Blackdawg, Jul 26, 2017
    #35
  16. Jul 26, 2017 at 5:07 PM
    #36
    TashcomerTexas

    #36
    TashcomerTexas My truck is a whiner

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    Without having to swap a tranny I think there's a few options that could benefit an auto 5vz. I'll be optimistic considering he can crack a 4.0.
     
    TashcomerTexas, Jul 26, 2017
    #36
  17. Jul 26, 2017 at 5:25 PM
    #37
    Empty_Lord

    #37
    Empty_Lord Toyotaholic

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    Too many trucks and mods to list.. check builds
    aww. looks like im still going to have to go piggy back =/
     
    Empty_Lord, Jul 26, 2017
    #37
  18. Jul 27, 2017 at 9:04 AM
    #38
    vasinvictor

    #38
    vasinvictor Junkie

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    The trans cable is not a kick down cable. The trans is electronically controlled, hence "ETC". The transmission has a PWR mode which electronically changes the shift points in the trans ECU. The cable is ONLY for line pressure. You can pull it all the way back and tie it off and you'll notice very firm shifts. It does NOT change the kickdown point.
     
    vasinvictor, Jul 27, 2017
    #38
    Brice and devinzz1 like this.
  19. Jul 27, 2017 at 9:05 AM
    #39
    vasinvictor

    #39
    vasinvictor Junkie

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    What happened to you, OP? Why only 03/04?
     
    vasinvictor, Jul 27, 2017
    #39
  20. Jul 27, 2017 at 9:59 AM
    #40
    CanadaToy

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    CanadaToy Well-Known Member

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    It's been 1.5 days since his last message... jesus.
     
    CanadaToy, Jul 27, 2017
    #40
    JasonLee likes this.
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