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Computer programmer

Discussion in '1st Gen. Tacomas' started by jmz82, Apr 25, 2013.

  1. Apr 25, 2013 at 8:02 AM
    #1
    jmz82

    jmz82 [OP] Member

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    I bought a ELM327 ODB2 adapter online, mainly to look at diagnostic info i.e check engine light codes.

    The one I got will connect to my computer/phone, can I use it to reprogram the trucks computer? I'm new to this so any info is great, is there any benefit, are there any dangers, what computer program/app should I try, etc.
     
  2. Apr 25, 2013 at 8:11 AM
    #2
    Lumpskie

    Lumpskie Independent Thinker

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    You'd need a program to interface with the ECU and that varies with the year of your truck and I don't know of one that can do that for the tacoma. From what I've seen, people run a "piggy back" box that has a GUI for the user and translates inputs before sending them to the truck.

    This can be very dangerous if you don't know what you are doing. If you change items like fuel ratio or timing (don't know if you can do that on a taco) you can blow up your motor.

    What are you trying to accomplish?
     
  3. Apr 25, 2013 at 8:30 AM
    #3
    jmz82

    jmz82 [OP] Member

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    Thanks for the reply, I guess I wasn't really sure what I wanted to do just wondering what I would be capable of. If I were to start anywhere it would probably be trying to get better MPG since I do a good bit of driving in it. I have an 04 if that makes any difference.

    If my only options have a possibility of being dangerous I'll probably just stick with checking diagnostics.
     
  4. Apr 25, 2013 at 8:55 AM
    #4
    Blackdawg

    Blackdawg Dr. Frankenstein

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    Nope

    Our ECU's aren't reprogrammable. No stock ECU is.

    Only thing you can do is get a piggy back of some sort.

    or stand alone

    You'll see very little improvement without FAI though.
     
  5. Apr 25, 2013 at 9:07 AM
    #5
    Lumpskie

    Lumpskie Independent Thinker

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    So, with an 04 you will be OBDII. Like Blackdawg said, you won't be able to do much unless your are running forced induction (is that FAI?) I've seen 4 cylinder turbo tacomas make a lot of power and run aftermarket programs to tune fuel, timing, knock control etc.

    If you are set on it, you can check out megasquirt as a fuel management system:

    Here's the hardware:
    http://www.diyautotune.com/catalog/index.php
    V6 Tacoma stuff
    http://www.diyautotune.com/diypnp/apps/n76/usdm-toy-tacoma-9597-5vzfe-mt.html

    4 cylinder megasquirt thread on customtacos
    http://www.customtacos.com/forum/showthread.php?t=71430

    Some threads of people troubleshooting once they run into problems(tach won't work, truck wont idle, loosing crank signal)
    http://www.msextra.com/forums/viewtopic.php?f=101&t=48788

    http://www.msextra.com/forums/viewtopic.php?f=101&t=47665

    http://www.msextra.com/forums/viewtopic.php?f=134&t=47209

    Hope this helps,

    Lumpskie
     
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