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Thread: LS1 converted to run E67 ecu but have issues.

  1. #1
    Potential Tuner
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    Dec 2021
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    Question LS1 converted to run E67 ecu but have issues.

    New Member but not new to LSx. However all my time has been strictly gen3 stuff...

    Father Swapped a 2011 Colorado from 4 cylinder to LS1 and it runs and drives okish. But starting and idle is rough and fueling is lean. He recently passed away and I am attempting to fix these issues.

    It's a LS1 with 58x reluctor wheel and cam sensor. Using E67 ecu.

    Has headers, mild cam on 114 lsa, and Fitech 102mm intake and GM 12613411 injectors

    I am looking for a starting point for starting and idle. I haven't been able to find any good reference for this.

    Any info on where to start or reference file would be much appreciated.

    Attaching current running tune. This is what I am starting with.

    *EDIT* The truck does have a persistent P0341 - Camshaft Position Sensor A Circuit Range/Performance (Bank 1 or single sensor) error. It's has a gen 4 timing cover with sensor. Not sure if it has the original crank sensor. Did the gen 4 require a newer type crank sensor??? Attaching a log.

    Thanks Guys.
    Attached Files Attached Files
    Last edited by brian.mclucas; 12-08-2021 at 06:13 PM.

  2. #2
    Potential Tuner
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    Dec 2021
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    Found major contributing factor, Used a bore scope to check timing gear. It's a 1x gear instead of 4x. Hopefully after swapping this, starting will be better and can work on getting fuel more in line.

  3. #3
    Tuning Addict blindsquirrel's Avatar
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    Yes, the crank sensors are (electrically) different from 24x (12v) to 58x (5v).