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ECMlink more 1g SD start up stuff

Posted by TK9er, Nov 16, 2019

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  1. TK9er

    TK9er Proven Member

    107
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    Joined Jun 1, 2014
    lincoln, Nebraska
    Ok, I'm am completely beside myself with this thing. Things I have done so far: checked compression, checked spark, set fuel pressure, ensured injectors are firing, verified base timing, reinstalled cas (both a know working, and my original), replaced coil, checked the ECU for blown grounds, replaced coolant temp sensor. I'm running out of ideas... Which leads me to where I am now. My coolant temp is reading high, like 96 and my GMAIT is reading 56. I replaced the sensor for the second time and actually ran wire directly to the ECU. It made no difference. Still the same. So, I unplugged it. The reading dropped about 10 degrees. Confused (I thought when you unplugged the CTS it would read -74 or something. So I unplugged the sending unit (the one pronged one that goes to the gauge I thought) and it read -74... I am very confused right now... I feel like I have done a lot of reading and nothing is making this thing work. Any ideas on what I should try next?
     

    Street Build 590  1

    1990 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  2. 1990TSIAWDTALON

    1990TSIAWDTALON Moderator

    4,571
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    Joined Nov 14, 2013
    Independence, Kansas
    Was it running before and you just switched to speed density? I run all of my DSM's on SD and have surprisingly good results and luck. What is the issue at hand? Just won't start? Throw up a log so I can look at it.
     

    Street Build 3K  27

    1992 Eagle Talon TSi AWD
    awd · automatic · 1G DSM

    534  14

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    449  18

    1967 Chevrolet Camaro RS
    rwd · automatic · Misc Vehicles

    Street Build 648  4

    1998 Eagle Talon TSi
    fwd · manual · 2G DSM

    Street Build 5K  11  25

    1990 Eagle Talon TSi AWD
    13.620 @ 108.460 · 1G DSM
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  3. 1990TSIAWDTALON

    1990TSIAWDTALON Moderator

    4,571
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    Independence, Kansas
    I looked at your profile and should be able to help out. I have 1990s also. Similar setups so if possible, log the problem and post it.
     

    Street Build 3K  27

    1992 Eagle Talon TSi AWD
    awd · automatic · 1G DSM

    534  14

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    449  18

    1967 Chevrolet Camaro RS
    rwd · automatic · Misc Vehicles

    Street Build 648  4

    1998 Eagle Talon TSi
    fwd · manual · 2G DSM

    Street Build 5K  11  25

    1990 Eagle Talon TSi AWD
    13.620 @ 108.460 · 1G DSM
    Loading...
  4. Vegas smith

    Vegas smith Proven Member

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    Joined Dec 2, 2002
    Houston, Texas
    My guess would be some type of grounding issue with the cts ground.
     

    Street Build 3K  10

    1993 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  5. TK9er

    TK9er Proven Member

    107
    9
    Joined Jun 1, 2014
    lincoln, Nebraska

    Street Build 590  1

    1990 Eagle Talon TSi AWD
    awd · manual · 1G DSM
    Loading...
  6. 1990TSIAWDTALON

    1990TSIAWDTALON Moderator

    4,571
    2,005
    Joined Nov 14, 2013
    Independence, Kansas
    Are you using a 2g Maf harness for your 1g on SD???
    Should have a 1g adaptor harness from ECMLink or OhmRacing. It will have EVERY plug for the IAT, MAP and Flex Fuel sensor if you want. That MAY be the whole problem.
     

    Street Build 3K  27

    1992 Eagle Talon TSi AWD
    awd · automatic · 1G DSM

    534  14

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    449  18

    1967 Chevrolet Camaro RS
    rwd · automatic · Misc Vehicles

    Street Build 648  4

    1998 Eagle Talon TSi
    fwd · manual · 2G DSM

    Street Build 5K  11  25

    1990 Eagle Talon TSi AWD
    13.620 @ 108.460 · 1G DSM
    Loading...
  7. 1990TSIAWDTALON

    1990TSIAWDTALON Moderator

    4,571
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    Independence, Kansas
    I don't know the difference in the harnesses but can tell you what I use.
     

    Street Build 3K  27

    1992 Eagle Talon TSi AWD
    awd · automatic · 1G DSM

    534  14

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    449  18

    1967 Chevrolet Camaro RS
    rwd · automatic · Misc Vehicles

    Street Build 648  4

    1998 Eagle Talon TSi
    fwd · manual · 2G DSM

    Street Build 5K  11  25

    1990 Eagle Talon TSi AWD
    13.620 @ 108.460 · 1G DSM
    Loading...
  8. TK9er

    TK9er Proven Member

    107
    9
    Joined Jun 1, 2014
    lincoln, Nebraska
    The previous person switched the car to a 2g maf. I ordered the 2g maf to SD cable for my set up setup. Is this wrong? I thought I asked that before and was told it was ok...
     

    Street Build 590  1

    1990 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  9. TK9er

    TK9er Proven Member

    107
    9
    Joined Jun 1, 2014
    lincoln, Nebraska
    It's the stupid computer!!!! My dad told me to try my old noneprom computer and it started right up! I never tried it because I was worried about the fueling and switching to speed density. But, it started up better than the ECU with link! Need to send the computer off to get fixed now.
     

    Street Build 590  1

    1990 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  10. Vegas smith

    Vegas smith Proven Member

    2,769
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    Houston, Texas
    I know you said you checked it but maybe the sensor ground is messed up. You'll see bizarre readings on the sensors.
     

    Street Build 3K  10

    1993 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  11. TK9er

    TK9er Proven Member

    107
    9
    Joined Jun 1, 2014
    lincoln, Nebraska
    Ok, this is getting weird. Unbeknownst to me my 1990 was running a 1991 + computer . Got that switch. Still the same issue...
     

    Street Build 590  1

    1990 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  12. 1990TSIAWDTALON

    1990TSIAWDTALON Moderator

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    Independence, Kansas
    That is a simple pin swap.
     

    Street Build 3K  27

    1992 Eagle Talon TSi AWD
    awd · automatic · 1G DSM

    534  14

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    449  18

    1967 Chevrolet Camaro RS
    rwd · automatic · Misc Vehicles

    Street Build 648  4

    1998 Eagle Talon TSi
    fwd · manual · 2G DSM

    Street Build 5K  11  25

    1990 Eagle Talon TSi AWD
    13.620 @ 108.460 · 1G DSM
    Loading...
  13. TK9er

    TK9er Proven Member

    107
    9
    Joined Jun 1, 2014
    lincoln, Nebraska
    Yup, just did it. Still doesn't run
     

    Street Build 590  1

    1990 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  14. 1990TSIAWDTALON

    1990TSIAWDTALON Moderator

    4,571
    2,005
    Joined Nov 14, 2013
    Independence, Kansas
    Screenshot_20191116-180053_Gallery.jpg
     

    Street Build 3K  27

    1992 Eagle Talon TSi AWD
    awd · automatic · 1G DSM

    534  14

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    449  18

    1967 Chevrolet Camaro RS
    rwd · automatic · Misc Vehicles

    Street Build 648  4

    1998 Eagle Talon TSi
    fwd · manual · 2G DSM

    Street Build 5K  11  25

    1990 Eagle Talon TSi AWD
    13.620 @ 108.460 · 1G DSM
    Loading...
  15. 1990TSIAWDTALON

    1990TSIAWDTALON Moderator

    4,571
    2,005
    Joined Nov 14, 2013
    Independence, Kansas
    The boys at ECMTuning will fix ya up! :thumb:
     

    Street Build 3K  27

    1992 Eagle Talon TSi AWD
    awd · automatic · 1G DSM

    534  14

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    449  18

    1967 Chevrolet Camaro RS
    rwd · automatic · Misc Vehicles

    Street Build 648  4

    1998 Eagle Talon TSi
    fwd · manual · 2G DSM

    Street Build 5K  11  25

    1990 Eagle Talon TSi AWD
    13.620 @ 108.460 · 1G DSM
    Loading...
  16. 1990TSIAWDTALON

    1990TSIAWDTALON Moderator

    4,571
    2,005
    Joined Nov 14, 2013
    Independence, Kansas
    I have a goofy boost guage signal on my 90 Link V3 ecu and may have to send mine in also.
     

    Street Build 3K  27

    1992 Eagle Talon TSi AWD
    awd · automatic · 1G DSM

    534  14

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    449  18

    1967 Chevrolet Camaro RS
    rwd · automatic · Misc Vehicles

    Street Build 648  4

    1998 Eagle Talon TSi
    fwd · manual · 2G DSM

    Street Build 5K  11  25

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

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