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Thread: hesitation on takeoff

  1. #1
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    hesitation on takeoff

    im noticing hesitation when leaving from a stop. the car motor tries to rev but it breaks up and no movement till the throttle v gets to .45
    at idel the voltage reads 0.0 so from o.o to .45 its breaking up and no movement, once it does move, its a scalded cat and have to feather the pedal to help with the jump. 9any suggestion on where to look? thanks in advanced.
    By the prickle of my thumb something wicked this way comes!2008 Chrysler 300c! 2013 heads/220/230 comp cam/LTheaders/FTI 2600 stall converter.

  2. #2
    Advanced Tuner N2speed's Avatar
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    any knock what about tip in?


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  3. #3
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    Be a lot easier to try and diagnose if a thorough datalog of the issue is supplied.
    What are the AFR's/fuel trims doing?

  4. #4
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    Quote Originally Posted by HaasExp View Post
    Be a lot easier to try and diagnose if a thorough datalog of the issue is supplied.
    What are the AFR's/fuel trims doing?
    greetings. today ill be able to take car out and create a log.been stuck in bad for a little. as of now i have o2'2 disabled because both upstream are bad. i in open loop.this has been happening for awhile now.thank you guys for responding. ill have that log later today.
    By the prickle of my thumb something wicked this way comes!2008 Chrysler 300c! 2013 heads/220/230 comp cam/LTheaders/FTI 2600 stall converter.

  5. #5
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    Quote Originally Posted by N2speed View Post
    any knock what about tip in?
    no knock and not sure what the tip in does but its disabled.ill have that log later today.
    By the prickle of my thumb something wicked this way comes!2008 Chrysler 300c! 2013 heads/220/230 comp cam/LTheaders/FTI 2600 stall converter.

  6. #6
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    here is the tune
    Attached Files Attached Files
    By the prickle of my thumb something wicked this way comes!2008 Chrysler 300c! 2013 heads/220/230 comp cam/LTheaders/FTI 2600 stall converter.

  7. #7
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    Quote Originally Posted by HaasExp View Post
    Be a lot easier to try and diagnose if a thorough datalog of the issue is supplied.
    What are the AFR's/fuel trims doing?
    sorry about the delay, i just notice you asked for the log and not the tune.
    Attached Files Attached Files
    By the prickle of my thumb something wicked this way comes!2008 Chrysler 300c! 2013 heads/220/230 comp cam/LTheaders/FTI 2600 stall converter.

  8. #8
    Advanced Tuner rays04gtx's Avatar
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    Quote Originally Posted by Turbo2gnx View Post
    sorry about the delay, i just notice you asked for the log and not the tune.
    so from time stamp 0:00 to roughly 3:00 that's a log of your car just idling ?
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  9. #9
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    Quote Originally Posted by rays04gtx View Post
    so from time stamp 0:00 to roughly 3:00 that's a log of your car just idling ?
    i apologize for that but after that 3 mins of idling,it gets up to 3rd gear after. did you see that or no? if not ill send a different log. thanks again for replying.
    By the prickle of my thumb something wicked this way comes!2008 Chrysler 300c! 2013 heads/220/230 comp cam/LTheaders/FTI 2600 stall converter.