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ECMlink Idling issues RWD setup on Chevy Luv

Posted by mattp_65, Jun 28, 2019

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  1. mattp_65

    mattp_65 Proven Member

    244
    39
    Joined Aug 16, 2004
    Lake Stevens, Washington
    Trying to do some idle tuning to get my 78 chevy Luv on the road (RWD 4G63T). Has 1g harness with 6bolt motor with 880cc injectors on SD. But for some reason it some times idle fine and then few seconds later just idles like crap and stalls out. Does my ISC or TPS look like its crapping out? I am running a 1g TPS with Idle switch wire connected. Any ideas? Also I have not set the timing yet to 5 deg since it keeps stalling.
     

    Attached Files:

    Street Build 608  1

    1978 Chevy LUV
    automatic · 4G63t Swapped

    1K  1

    1995 Eagle Talon TSi AWD
    11.98 @ 125 · 2G DSM

    680  0

    1995 Eagle Talon TSi AWD
    12.04 @ 121.000 · 2G DSM
    Loading...
  2. tk106

    tk106 Supporting Member

    1,430
    305
    Joined Sep 11, 2017
    Cincinnati, Ohio

    119  3

    2000 Jeep Cherokee Sport - Classic
    awd · automatic · Misc Vehicles

    119  4

    93 Civic 4 Door -sold-
    fwd · manual · Misc Vehicles

    Street Build 2K  6

    1992 Eagle Talon TSi AWD
    12.625 @ 111.42 · 1G DSM
    Loading...
    1990TSIAWDTALON likes this.
  3. mattp_65

    mattp_65 Proven Member

    244
    39
    Joined Aug 16, 2004
    Lake Stevens, Washington
    ah crap thanks! I will check that
     

    Street Build 608  1

    1978 Chevy LUV
    automatic · 4G63t Swapped

    1K  1

    1995 Eagle Talon TSi AWD
    11.98 @ 125 · 2G DSM

    680  0

    1995 Eagle Talon TSi AWD
    12.04 @ 121.000 · 2G DSM
    Loading...
    tk106 likes this.
  4. 1990TSIAWDTALON

    1990TSIAWDTALON Moderator

    4,239
    1,759
    Joined Nov 14, 2013
    Independence, Kansas
    If you have injector voltage offsets and coolant offsets, check those also as they do effect the tune. I usually take a picture of the settings then just fiddle with them and if I goof it up, I just reset it to what it was and move on, LOL. Sitting in the car running and having your changes take effect immediately usually gets me close if I don't have tried and true settings from the manufacturer of the injectors. Get that base idle set to 5* also, very important. I usually set the very first timing table box to 5* in my tune, to get started.
     

    Street Build 3K  26

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

    249  13

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    359  17

    1967 Chevrolet Camaro RS
    rwd · automatic · Misc Vehicles

    Street Build 515  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...
  5. mattp_65

    mattp_65 Proven Member

    244
    39
    Joined Aug 16, 2004
    Lake Stevens, Washington
    here is another log. Idled at least now but high rpm. Going into closed and open loop. why?

    For some reason battery not charging. New 90amp alt and I think I have it wired correctly.
    Anyone know how to wire an alternator correctly on a non-dsm truck with dsm 1g harness? I dont have the oem gauge cluster.
     

    Attached Files:

    Street Build 608  1

    1978 Chevy LUV
    automatic · 4G63t Swapped

    1K  1

    1995 Eagle Talon TSi AWD
    11.98 @ 125 · 2G DSM

    680  0

    1995 Eagle Talon TSi AWD
    12.04 @ 121.000 · 2G DSM
    Loading...

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