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ECMlink Engine struggling to start with new injectors

Posted by blujeans, Apr 7, 2020

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  1. blujeans

    blujeans Proven Member

    47
    3
    Joined Dec 15, 2018
    Calgary, AB, Canada
    I recently bought some used PTE 680CC injectors off a friend that were flow tested and cleaned and installed them, but now my engine won't start up. I've dialed in the settings for the injectors on the fuel tab to no avail. It cranks and sounds like it's about to start every other second or so, but it's no use. Below is a log of me trying to start it, any help would be appreciated.
     

    Attached Files:

    119  1

    2011 Mazda 3 GT
    fwd · manual · Misc Vehicles
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  2. dudeX

    dudeX Proven Member

    118
    11
    Joined Jun 14, 2011
    Surprise, Arizona
    Did you change the injBatteryAdj in the direct access tables to match you injectors?
     

    Street Build 164  1

    1998 Mitsubishi Eclipse Spyder GST
    fwd · manual · 2G DSM
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  3. blujeans

    blujeans Proven Member

    47
    3
    Joined Dec 15, 2018
    Calgary, AB, Canada
    I looked at it but I'm not really sure how to use it. Do I just add the value of the global deadtime to all the values?
     

    119  1

    2011 Mazda 3 GT
    fwd · manual · Misc Vehicles
    Loading...
  4. dudeX

    dudeX Proven Member

    118
    11
    Joined Jun 14, 2011
    Surprise, Arizona
    There should be a data sheet that will tell you what the deadline is at different voltages for those injectors. You have to get it as close as you can reasonably. If you do it right you should only need small deadtime adjustments in the fuel tab to get fuel trims in line.
     
    Last edited: Apr 7, 2020

    Street Build 164  1

    1998 Mitsubishi Eclipse Spyder GST
    fwd · manual · 2G DSM
    Loading...
  5. dudeX

    dudeX Proven Member

    118
    11
    Joined Jun 14, 2011
    Surprise, Arizona
    Look here

    http://www.ecmtuning.com/wiki/injbatadj

    I am adding 10ms in the fuel tab to my injector deadtime to adjust fuel trims. The only real change you need to make is the global setting so the computer knows what % to adjust for the difference between 450cc and 680cc.
     

    Street Build 164  1

    1998 Mitsubishi Eclipse Spyder GST
    fwd · manual · 2G DSM
    Loading...
  6. blujeans

    blujeans Proven Member

    47
    3
    Joined Dec 15, 2018
    Calgary, AB, Canada
    I understand now. I'll play around with it tomorrow and post the results
     

    119  1

    2011 Mazda 3 GT
    fwd · manual · Misc Vehicles
    Loading...
  7. 1990TSIAWDTALON

    1990TSIAWDTALON Moderator

    5,203
    2,535
    Joined Nov 14, 2013
    Independence, Kansas
    Play with the global until it wants to start.....I do it that way then when it is RUNNING, start dialing it in closer. I am not sure if those injectors have a data sheet like the FIC's do but @dudeX is right on that. I rather enjoy firing up a new set and let my son do my 1120s for practice and the car fired right up, but he has helped me many times before.
    He passed the test! :thumb:

    I will try to look at your log in a little bit when my work has slowed down.
     

    Street Build 4K  29

    1992 Eagle Talon TSi AWD
    14.74 @ 117.04 · 1G DSM

    1K  14

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    692  18

    1967 Chevrolet Camaro RS
    rwd · automatic · Misc Vehicles

    Street Build 959  7

    1998 Eagle Talon TSi
    fwd · manual · 2G DSM

    Street Build 6K  13  25

    1990 Eagle Talon TSi AWD
    13.620 @ 108.460 · 1G DSM
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  8. blujeans

    blujeans Proven Member

    47
    3
    Joined Dec 15, 2018
    Calgary, AB, Canada
    Just tried screwing around with the settings for a few hours, the engine tried to start up for a half a second longer but it still gives up. I think I'm just gonna stick with my 450s for now, but thanks for the help guys :)
     

    119  1

    2011 Mazda 3 GT
    fwd · manual · Misc Vehicles
    Loading...
  9. jed344

    jed344 Supporting VIP

    666
    70
    Joined Jan 10, 2008
    Waterville, Iowa
    Why is your tps locked at .47V and throttle % not changing first off. Your wideband is showing pig rich. Doing the calculate function your global is off.
     

    1K  26

    1997 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
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  10. blujeans

    blujeans Proven Member

    47
    3
    Joined Dec 15, 2018
    Calgary, AB, Canada
    Soooo.... turns out the reason my car wasn't starting was because I didn't plug my MAP sensor all the way in. :banghead::banghead::banghead:
     

    119  1

    2011 Mazda 3 GT
    fwd · manual · Misc Vehicles
    Loading...
  11. curt-s

    curt-s Proven Member

    808
    251
    Joined Dec 21, 2008
    Winterville, MB, Canada
    i dont think you meant milliseconds.. ;)
     

    Street Build 2K  1

    1991 Eagle Talon TSi
    fwd · manual · 1G DSM
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