Ignition correction question

Discussion in 'I4 2.3L EcoBoost Engine / Mods: Bolt-ons, Exhaust,' started by Ghost3366, Mar 15, 2019.

  1. Ghost3366

    Ghost3366 Active Member

    Vehicle(s):
    2017 Ecoboost Mustang Premium
    Joined:
    Nov 17, 2018
    Location:
    United States
    Posts:
    25
    Likes Received:
    3
    0   0   0
    I was doing some research recently since getting my accessport and have a question. When I first monitoted ing correction I was seeing mostly negative correction. Maybe around 1 or 2 . I recently tried a new gas station and decided to go for a drive to see how the car was performing.. I was seeing positive corrections up to 6 or 7 . Is this normal? Maybe bad gas? The ajusted fuel ratio one (name might not be correct) is still at -1. So I am confused. IMG_20190315_125303862.jpg
     
  2. Grimace427

    Grimace427 Well-Known Member

    Vehicle(s):
    2011 Mustang 5.0
    Joined:
    Dec 6, 2013
    Location:
    NoVA
    Posts:
    6,366
    Likes Received:
    1,579
    0   0   0
    If you are truly concerned send a datalog to your tuner.
     
  3. OP
    OP
    Ghost3366

    Ghost3366 Active Member

    Vehicle(s):
    2017 Ecoboost Mustang Premium
    Joined:
    Nov 17, 2018
    Location:
    United States
    Posts:
    25
    Likes Received:
    3
    0   0   0
    Tune is currently a OTS Cobb stage 1 93
     
  4. 5.0yote

    5.0yote AKA Bananana & 3.7Cyclone

    First Name:
    Don
    Vehicle(s):
    2016 Mustang Ecoboost Premium
    Joined:
    Jul 18, 2015
    Location:
    Mansfield, MA
    Posts:
    584
    Likes Received:
    134
    Garage Profiles:
    1
    Rating:
    100%
    4   0   0
    I would not worry about -ignition corrections till you see consistent timing retarding, a -.5 is not a huge change, and positive corrections are ok. if you start seeing random -3.00+ corrections consistently then I would be a little worried. Usually when I would see these it would be either gas quality was not quite up to the task, or heat soak. I would also check alternating cyl monitors too see if you are seeing similar across all cyls, or just one or two. If your worried I would drop down to the stage 1 91 octane OTS but run the 93octane fuel and see if this minor correction goes away but I am not seeing a high knock count either which usually follows bad gas around imo I think you are ok.
     
  5. OP
    OP
    Ghost3366

    Ghost3366 Active Member

    Vehicle(s):
    2017 Ecoboost Mustang Premium
    Joined:
    Nov 17, 2018
    Location:
    United States
    Posts:
    25
    Likes Received:
    3
    0   0   0
    Thank you for the response, very helpful. I felt gas and or heat could be the issue, it was actually above 60 today in the northeast. I more was wondering if positive correction of 6 or 7 would be something to really worry about or just expected. Sounds normal , please let me know any other thoughts.
     
  6. 5.0yote

    5.0yote AKA Bananana & 3.7Cyclone

    First Name:
    Don
    Vehicle(s):
    2016 Mustang Ecoboost Premium
    Joined:
    Jul 18, 2015
    Location:
    Mansfield, MA
    Posts:
    584
    Likes Received:
    134
    Garage Profiles:
    1
    Rating:
    100%
    4   0   0
    Timing advance under load is normal especially if everything is good, negative in such a small amount and not knowing if it was multiple cylinders because you are only monitoring one cyl #3. But such a low correction, and no high knock count I think your fine.
     
  7. Hellman109

    Hellman109 Well-Known Member

    Vehicle(s):
    2017 Mustang Ecoboost Convertible (See my garage)
    Joined:
    Jul 3, 2017
    Location:
    Melbourne, Australia
    Posts:
    320
    Likes Received:
    116
    Garage Profiles:
    1
    0   0   0
    bad Spark plugs can also cause negative corrections too.

    However, if it detects bad enough knock, it drops the OAR which drops timing. If you're OAR sits on -1 all the time, then it doesn't think the knock you're getting is bad.
     
  8. 5.0yote

    5.0yote AKA Bananana & 3.7Cyclone

    First Name:
    Don
    Vehicle(s):
    2016 Mustang Ecoboost Premium
    Joined:
    Jul 18, 2015
    Location:
    Mansfield, MA
    Posts:
    584
    Likes Received:
    134
    Garage Profiles:
    1
    Rating:
    100%
    4   0   0
    Correct but one -.5 degree of timing correction is a very small correction that would have little to no affect.
     
  9. OP
    OP
    Ghost3366

    Ghost3366 Active Member

    Vehicle(s):
    2017 Ecoboost Mustang Premium
    Joined:
    Nov 17, 2018
    Location:
    United States
    Posts:
    25
    Likes Received:
    3
    0   0   0
    Cylinder 2 is also on the gauges showing in the picture.
     
Loading...

Share This Page