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What have you learned from your Scanguage?

Discussion in '2nd Gen. Tacomas (2005-2015)' started by a89aries, Sep 1, 2010.

  1. Sep 1, 2010 at 8:37 AM
    #1
    a89aries

    a89aries [OP] Well-Known Member

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    I just installed my new ScanguageII last week and have been tinkering with various things. What have other users discovered about their truck? I'm still trying to figure out my best mileage for both 5th and 6th gear on the highway. What do you tend to monitor?

    Just looking for various ways that other users take advantage of what the scanguageII can do.
     
  2. Sep 1, 2010 at 8:39 AM
    #2
    blackhawke88

    blackhawke88 wo ai ni bao bei ^_^

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    I monitor mpg, load, mph (cuz i have bigger tires) and water temp. I have learned that I waste a lot of gas.
     
  3. Sep 1, 2010 at 9:01 AM
    #3
    JKD

    JKD Well-Known Member

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    I have MPG, Avg MPG, and the other two I cycle through depending on what I care about at the time. Right now it's on MPH and intake air temp. Sometimes I monitor coolant temp, sometimes I monitor load.
     
  4. Sep 1, 2010 at 9:08 AM
    #4
    supralight

    supralight Well-Known Member

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    on my manual, I have learned that you can go very low in RPM (down to 1300-1400 in fifth gear, even less in traffic) to achieve best MPG. Everytime there is no load I go up to the highest gear possible which is 95% of the time fifth gear.

    I learned that wind, face or side, have a HUGE effect on fuel economy, mostly when it's cold outside.

    Temperature has a big impact also, where 100 KPH would lead to a approx 9.5-10 LHK in summer, and 10.8-11.5 during winter (sometimes even more).

    warm up of the engine has a big impact on your overall MPG over a short or medium lenght destination.

    And speed vs MPG...
     
  5. Sep 1, 2010 at 9:11 AM
    #5
    Bobo_1

    Bobo_1 Well-Known Member

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    That we still can't get Trans Temps even with XGauge commands.
     
  6. Sep 1, 2010 at 9:12 AM
    #6
    cwat

    cwat Member

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    Took off TRD stickers. That's it so far.
    Mine basically confirms that gas mileage is mostly about the common sense stuff (if its warmed up, what the weather's like). But I've found it useful for picking out the sweet spots for shifting (around town) and for maintaining an efficient cruising speed on the interstate.
     
  7. Sep 1, 2010 at 9:15 AM
    #7
    yosh2000

    yosh2000 Well-Known Member

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    hahah, i was just about to post the exact same thing!! even after at least 3 years of promising its "coming soon"...!
     
  8. Sep 1, 2010 at 9:16 AM
    #8
    mjp2

    mjp2 Living vicariously though myself Moderator

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    That the oil cooler on my diesel was plugged up, and later that the high pressure oil pump was in need of replacing on the same truck.

    That little gauge is fantastic.
     
  9. Sep 1, 2010 at 9:30 AM
    #9
    a89aries

    a89aries [OP] Well-Known Member

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    Really? I usually try to keep it between 2000-2500 rpm on the highway. Going to have to mess with that.
     
  10. Sep 2, 2010 at 5:52 AM
    #10
    supralight

    supralight Well-Known Member

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    What I really meant is when you are driving on a suburban road, for example, use higher gear as much as possible.
     
  11. Sep 2, 2010 at 5:57 AM
    #11
    rme

    rme Well-Known Member

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    How did you learn about the above problems? Was it a pressure issue and you felt like your truck was underperforming or what? What kind of diesel do you drive? Do you think the scangauge is a good investment or just a nice to have toy?
     
  12. Sep 2, 2010 at 6:34 AM
    #12
    Isthatahemi

    Isthatahemi Well-Known Member

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    I agree 100% with the above post. Low rpm is key. I also learned that a lot of people are either lying or exagerating their mileage. I also found out the highway mileage is so poor, that low speed city driving gets better mileage! (20 mpg easily achievable in the city) Since getting my scangauge I have had 1 tank that averaged over 17 mpg, and my wife drives the truck most, and we drive 90% highway. I roll my eyes when people claim 20 mpg highway, because on average, that is impossible unless you travel at 55 mph (V6), I have also noticed the water temp never spikes, and is always below 92C. Another observation is how fast I accelerate affects mileage less than my braking habits.
     
  13. Sep 2, 2010 at 6:50 AM
    #13
    T0LLPHR33

    T0LLPHR33 Well-Known Member

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    S1N C1TY...(from Hilo, HI)...
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    IAT (intake air temps), MPG, AFR, and engine load...most of the time I have coolant/water temps instead of engine load...
     
  14. Sep 2, 2010 at 7:12 AM
    #14
    mjp2

    mjp2 Living vicariously though myself Moderator

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    It's far and away an excellent investment. That you can clear the check engine light is nice, but the information you can pull from the truck makes troubleshooting a breeze!

    I have a 2006 Ford 6.0 that was puking coolant out of the degas bottle when towing in hot weather. Using the xgauge settings, I was able to pull the oil and coolant temps from the engine. Comparing the two showed that there was more than a 15 degree difference, which is a symptom of the oil cooler be plugged in that truck.

    Doing some more research, the EGR cooler is in series with the oil cooler, so low flow through the oil cooler means low flow through the EGR cooler, which boils the coolant. Ordered parts, tore the engine down to the heads, and replaced everything I needed to.

    When I was done, it ran rough. I pulled the codes with the scangauge and found that the exhaust backpressure sensor wasn't working. Looked around, saw that I forgot to plug it back in, corrected that, and the truck ran great.

    Another time I had a cranks/no start condition. Again, using the xgauge I pulled the injection control pressure reading and saw that it was 220psi. The injectors run off the oil pressure and require at least 500psi to operate, so I knew I had to replace the high pressure oil pump.

    To have all that work done by a shop would have cost approximately $7000, including parts. The scangauge saved me several thousand dollars in labor. Well worth it in my book.
     
  15. Sep 2, 2010 at 7:26 AM
    #15
    pizzo

    pizzo Well-Known Member

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    to the OP.. where did you get your scangauge from???
     
  16. Sep 2, 2010 at 3:56 PM
    #16
    rme

    rme Well-Known Member

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  17. Sep 3, 2010 at 5:51 PM
    #17
    3n1

    3n1 Well-Known Member

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  18. Sep 3, 2010 at 5:55 PM
    #18
    mattleegee

    mattleegee Well-Known Member

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    MPG>MPH>Coolant temp>LOAD
     
  19. Sep 4, 2010 at 7:40 AM
    #19
    rme

    rme Well-Known Member

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