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Thread: 2016 coyote locked cams no start backfires

  1. #1
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    2016 coyote locked cams no start backfires

    car ran on this tune just got new motor with locked cams now no start just backfires, i think i got everything adjusted right for the vvt being locked out2016 coyote locket cams.hpt

  2. #2
    [ECM] 3884 - VCT Manual Control Switch: Disabled -- I'm guessing here but I would think you want manual control enabled.

  3. #3
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    Quote Originally Posted by Ranger Coyote View Post
    [ECM] 3884 - VCT Manual Control Switch: Disabled -- I'm guessing here but I would think you want manual control enabled.
    tried no start
    no start2.hpl

  4. #4
    I see big MAP/IPC errors but what's even more concerning me is that the cam angles are changing. Does it have a physical VCT lockout installed?

  5. #5
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    Quote Originally Posted by Ranger Coyote View Post
    I see big MAP/IPC errors but what's even more concerning me is that the cam angles are changing. Does it have a physical VCT lockout installed?
    yes physically locked

  6. #6
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    Sounds like the cams are not installed properly. When they installed the cam chains did they follow the Ford procedure exactly? I messed up first time I did it, and my motor backfired when I tried to start it.

  7. #7
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    Quote Originally Posted by Plimmer View Post
    Sounds like the cams are not installed properly. When they installed the cam chains did they follow the Ford procedure exactly? I messed up first time I did it, and my motor backfired when I tried to start it.
    That was my thought too, because of the difference in bank to bank. The installation procedure between 11-14 and 15+ is slightly different too.
    Last edited by txcharlie; 01-21-2021 at 11:54 PM.

  8. #8
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    cam timing wrong
    Turbocharged COYOTE

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  9. #9
    Senior Tuner SultanHassanMasTuning's Avatar
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    99% of the time no start/backfire will be improper cam timing
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  10. #10
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    after you locked out and enabled manual control did you degree and enter the cam angles? Also, is the IMRC locked out? The switch is enabled but the rest of it is set up as if it is locked out.
    Last edited by ishyne22; 01-24-2021 at 08:01 PM.

  11. #11
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    I'd suggest going to L&M engines and following their cam timing procedure. The ford one, while correct, is a little confusing.
    ?Our greatest success comes from failure? -Confucius

  12. #12
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    could also be a really big vacuum leak.
    ?Our greatest success comes from failure? -Confucius

  13. #13
    I was trying to do a ghost cam and when my speed density was way off it did this.. what if you turn off cyl anticipation? I'm throwing guesses into the wind here