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Thread: knock sensors pull too much timing 12 degrees

  1. #1
    Tuner in Training
    Join Date
    Sep 2018
    Posts
    14

    knock sensors pull too much timing 12 degrees

    Hi guy
    2014 v6 3.6 dodge charger
    The car pull too much timing
    I cant find the problem, something wired with it

    The car with stock timing (87 octane)
    Pull about 12 degrees retard
    I feel like driving 60cc scooter

    -changed engine & transmission mounts
    -checked wiring harness
    -changed exhaust couple times
    -nothing hitting engine or frame
    -Changed back to stock air intake
    No help



    Couple years the car was tuned with 91 octane with cai and off-road mid pipes
    Performance with stock hemi's
    Now today I just want drive a car not 60cc scooter.

    The only mod on the car now afe cold air intake with off-road mid pipes
    I Fill it with 91 octane with octane booster no help.
    Some times the problem gone for maybe days minutes
    And always back on..

    Now almost 1 year with the problem
    Yesterday I changed the oil and it seems to be fixed performance back to stock
    Couple pulls back to the same problem.

    I don?t hear detonation.
    Here logs of the problem
    Sorry for my English
    Attached Files Attached Files

  2. #2
    Tuner in Training
    Join Date
    Apr 2016
    Location
    maine
    Posts
    13
    What's up with your charge air temp? 132 degrees seems high to me, not sure if the computer would pull timing because of the heat but that can't help.

  3. #3
    Tuner in Training
    Join Date
    Sep 2018
    Posts
    14
    Quote Originally Posted by bigredtruck View Post
    What's up with your charge air temp? 132 degrees seems high to me, not sure if the computer would pull timing because of the heat but that can't help.
    its high due the summer session in my country
    but in winter more colder around 60 F but no luck still retard timing
    my brother have the same car its never pulled timing with 87 octane with higher intake temps (stock air intake) imagine with 91 octane it will take couple degrees with no problem at all
    my car with stock tune with 91 octane + octane booster still retard timing
    you can see knock sensors voltage it seems way more higher numbers

  4. #4
    Potential Tuner
    Join Date
    May 2019
    Posts
    1
    Disable KR

  5. #5
    plugged cats....

  6. #6
    Advanced Tuner
    Join Date
    Feb 2019
    Location
    Owensboro, KY
    Posts
    266
    Just a idea have you checked the plugs??? Might start with that if you havent changed them since you owned it. I would also check all of the ignition components, Sounds like a intermittent issue which would led me to believe its a plug, wire, or coil not firing right or not enough spark which tends to load a cylinder with fuel and air. All of this creates more heat and uncontrolled burn AKA knock. Just my opinion