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Thread: Cold Start Up Idle Surge

  1. #1
    Advanced Tuner coachcrow56's Avatar
    Join Date
    Dec 2004
    Location
    Longview, Texas
    Posts
    305

    Cold Start Up Idle Surge

    I am posting a scan of my cold start up and a tune file. When I start my car, the idle surges and will not settle to one speed. I need help. Can someone smarter than me take a close look at my tune and see what is wrong. The rest of my tune is great---it locks at 0 LTFT's at full throttle with no KR---very satisfied with that. But my cold start up is embarrassing. It does it when completely warmed up too, but I didn't post that scan. I need the cold start up fixed first. Somebody please help me!
    Attached Files Attached Files
    Last edited by coachcrow56; 02-23-2020 at 10:12 PM. Reason: delete my post please
    2.8/3.0/3.2 Pulley/ZZP CAI/1.6 HS Rockers/Hi Energy Comp Cam 76-802-9/LS7 Lifters/ZZP Stage 2 Intercooler/TOG Headers/Triple Edge Performance Stage 3 Transmission/3.29 Ratio/NGK TR6ix IRIDIUM .40 GAP/ZZP Fuel Rails/ZEX 100 shot NOS/GMPP Sway Bars/KYB Adjustable Struts/Power Stop Performance Pads/Rotors

  2. #2
    Tuner in Training
    Join Date
    Nov 2019
    Posts
    19
    hi, I am a beginner but I think O/L AFR or START UP AFR CORRECTION can help,because vs T?C. before check if ECT is fine.