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URD MAF Calibrator

Discussion in 'Product Reviews' started by lsocoee, Feb 23, 2008.

  1. Sep 9, 2008 at 7:59 PM
    #41
    lsocoee

    lsocoee [OP] My hair is all natural Staff Member

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    most scan tools requires that you install an 02 sensor. It is not the sort of thing that is just a temp install.

    I'd just run it like URD has it programmed until you add on some more mods.
     
  2. Sep 10, 2008 at 2:22 PM
    #42
    jaxchrisfla

    jaxchrisfla Well-Known Member

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    buy a scangague II and it will bring great peace of mind. it will give you open and closed loop, mph, rpms, intake temps, water temps, and many many other things including gas mileage tracker. costs around 150, and well worth it.

    but im not sure it will provide everything needed for tuning closed loop fuel trims. i know it has short and long terms, but i think there is something else you need.
     
  3. Sep 10, 2008 at 2:33 PM
    #43
    lsocoee

    lsocoee [OP] My hair is all natural Staff Member

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    to tune it, you need to get the A/F ratio. The scan gauge will not provide that.
     
  4. Sep 17, 2008 at 5:21 PM
    #44
    roxspin72

    roxspin72 Enjoying my addiction

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    One more question,

    So if I just plug it in as tuned by the boys at URD, would or should I feel a diff @ WOT???

    Just wondering if there is a noticeable gain to feel, since I dropped couple hundred bones.

    Im thinking keep it at the stock MAP program, being that my True Flow intake mimic's more of the stock intake set up, rather than the URD TCAI.

    Thanks.
     
  5. Sep 17, 2008 at 5:30 PM
    #45
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

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    At WOT your engine goes into "Open loop". So, No, no difference in WOT applications. :)
     
  6. Sep 17, 2008 at 5:41 PM
    #46
    roxspin72

    roxspin72 Enjoying my addiction

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    Ok? Now I'm confused... All this time I was under the impression that the MAF Cali was designed to effect open loop. So where do you see the effects of this Mod:confused:
     
  7. Sep 17, 2008 at 6:08 PM
    #47
    jaxchrisfla

    jaxchrisfla Well-Known Member

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    The maf cal is designed to adjust fuel trims when in open loop. as the computer does not read the senors in order to adjust the air fuel ratio as it does in closed loop. you will be able to change the trims in the different voltage ranges to smooth out the afr and make for more power, and/or better mpg. you can tune closed loop just a little, but the computer will always pull it back to 14.7 in closed loop
     
  8. Sep 17, 2008 at 6:53 PM
    #48
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

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    :eek: I stand corected. I thought its tuning was limited to closed loop, and not for open loop.
     
  9. Sep 17, 2008 at 7:00 PM
    #49
    roxspin72

    roxspin72 Enjoying my addiction

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    Thanks for the clarification fella's...

    Well, hope I will enjoy the gains:D
     
  10. Sep 18, 2008 at 10:41 AM
    #50
    BullKnob

    BullKnob Well-Known Member

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    So does this Calibrator improve mpg's with the map that URD programs it to or do I need to need to adjust for that. And what the hell is this open or closed loop talk I am new to this whole thing,
     
  11. Sep 18, 2008 at 10:50 AM
    #51
    lsocoee

    lsocoee [OP] My hair is all natural Staff Member

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    in short, open loop is when you floor it and closed loop is when you don't. Closed loop (also know as a feedback loop) monitors your exhaust and adjusts your AF ratio continuously. When you floor it, your ECU quits monitoring it and dumps a bunch of gas in there. The calibrator adjusts the AF ratio when the engine goes into open loop.

    As for your MPG, the calibrator should not affect your efficiency much because you should be spending most of your time in the closed loop. To maximize your MPG, you should be spending ALL of your time in the closed loop.
     
  12. Oct 2, 2008 at 8:52 PM
    #52
    roxspin72

    roxspin72 Enjoying my addiction

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    No BS... w/just the preset MAP I can tell the Diff... Pulls very hard throught the RPM band in 1st-4th. I test drove before & after on the same road. W/MAF installed... " I felt like it was time to call quits." Definately cought some attention. I have the plug and play, so I can do a before and after track time later in the future. But besides that, I just want to properly tune this baby and see what the max gains are:D

    Do buy, URD Rocks...

    To Gadget and all the fellas @ URD, thanks for the great CS...

    Laters.
     
  13. Oct 5, 2008 at 3:34 PM
    #53
    jaxchrisfla

    jaxchrisfla Well-Known Member

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    you dont have to unplug it to return it to stock. go into the software, save the current tune, and then select all on the fuel table, and make them all 10. it will make the calibrator neutral, and not noticeable to the ecu.
     
  14. Mar 4, 2009 at 1:45 PM
    #54
    sockmonkey

    sockmonkey Well-Known Member

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    i will be installing my MAF calibrator this weekend (biting nails) :pray:
     
  15. Mar 4, 2009 at 1:46 PM
    #55
    lsocoee

    lsocoee [OP] My hair is all natural Staff Member

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    good luck. It isn't that hard to do it correct, but it is easy to screw up.
     
  16. Mar 21, 2009 at 11:34 PM
    #56
    SMG26

    SMG26 Well-Known Member

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    I had some questions about the MAF cal before a buy one. How hard is it to install? Is there any soldering involved? I really do not want to shell out the 300 price for the plug n play harness. Also is the power gain really that noticed? And can gadget pre tune it for me since I am not to good with computers?
     
  17. Mar 22, 2009 at 12:47 AM
    #57
    HILOTOY

    HILOTOY HILOTOY

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    for the price ,it is worth every penny. Installed mine about 4 months ago, and really love it. Turns heads every time I floor it. :)
     
  18. Mar 22, 2009 at 2:28 AM
    #58
    sockmonkey

    sockmonkey Well-Known Member

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    there is soldering involved only if you want the connections to be the best.

    the hardest part is getting to some of the wires to solder.

    i had mine preloaded with the volant and stock exhaust config.
    noticing a little difference
     
  19. Aug 4, 2009 at 12:59 PM
    #59
    thekidcatcher

    thekidcatcher Well-Known Member

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    Hey Isocee, did you notice when installing it that Plug A pin 20 is not the green and black wire but just the green wire? Which did you go to?
     
  20. Aug 4, 2009 at 2:36 PM
    #60
    thekidcatcher

    thekidcatcher Well-Known Member

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    I take that back lol
     
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