Results 1 to 4 of 4

Thread: Starting issues ls1 6.0l

  1. #1
    Tuner in Training
    Join Date
    Apr 2022
    Location
    Northern California
    Posts
    21

    Starting issues ls1 6.0l

    hello, can anyone help me out? I have a 6.0l with a mild cam and 317 heads. I was running a fitech system and one day while driving down the freeway it started running odd when I pulled over the engine was running supper rough. when I tried to restart it the engine backfired and died. I replaced the cam sensor and the crank sensor no change. I then swapped over to a P01 ecu and put a stock file in. After turning off VATS and the usual stuff I'm getting the same results. Today I unplugged the cam sensor and it started but was running really rough and would not idle. Any ides ?
    Attached Files Attached Files

  2. #2
    Tuner in Training
    Join Date
    Apr 2022
    Location
    Northern California
    Posts
    21
    never mind guys I dug in a little deeper today and found the issue.

  3. #3
    Advanced Tuner Matt Vardaman's Avatar
    Join Date
    Mar 2021
    Posts
    207
    Quote Originally Posted by Kevin flynn View Post
    never mind guys I dug in a little deeper today and found the issue.
    Well? what was the issue?
    2001 Silverado 5.3 - 209/217 cam, GT45 Turbo on 7lbs, Aem x-series wideband, 50lb/hr flex fuel injectors, on E85 with content sensor

    1999 Silverado 6.0/4L80E Summit Stage one camshaft, 317 heads (replaced cast iron)

  4. #4
    Tuner in Training
    Join Date
    Apr 2022
    Location
    Northern California
    Posts
    21
    I randomly broke a new comp cams intake valve spring. Luckily the keeper held tight but the valve obviously wasn't setting.