1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

2TR-FE Pinging

Discussion in '4 Cylinder' started by BassAckwards, Jun 3, 2019.

  1. Jun 3, 2019 at 12:11 PM
    #1
    BassAckwards

    BassAckwards [OP] Well-Known Member

    Joined:
    May 3, 2016
    Member:
    #186002
    Messages:
    24,402
    Gender:
    Male
    First Name:
    Robert
    TX
    Vehicle:
    '09 I4 5spd & '13 V6 6spd
    Has anyone on here had issues with their 2.7L 2TR pinging on 87 octane? I am about 2000ft above sea level and on a hot day (only when it's hot out) if i hit the gas hard in 1st or 2nd gear, i get some pinging between 3000-4000rpms. I filled up with premium 93 octane today and it seems to have eliminated the problem. Curious if anyone else out there has noticed this? I know it was a problem on some v6 trucks and there was a TSB for it. Curious if anything similar is out for the 4 bangers

    Cheers,
    Robert
     
  2. Jun 3, 2019 at 1:42 PM
    #2
    05Taco4x4

    05Taco4x4 ToyotaHubs

    Joined:
    Jun 29, 2011
    Member:
    #59085
    Messages:
    5,031
    Gender:
    Male
    Vehicle:
    2TR-FE Enthusiast
    FJ Tcase, Manual Hubs, 2017 Head unit, Mirror Riser
    Have you checked the sensor, or replaced it?
     
    BassAckwards [OP] likes this.
  3. Jun 3, 2019 at 1:43 PM
    #3
    BassAckwards

    BassAckwards [OP] Well-Known Member

    Joined:
    May 3, 2016
    Member:
    #186002
    Messages:
    24,402
    Gender:
    Male
    First Name:
    Robert
    TX
    Vehicle:
    '09 I4 5spd & '13 V6 6spd
    No sir.. probably would be a good idea after 250k..

    Where is said sensor sir?
     
  4. Jun 3, 2019 at 3:32 PM
    #4
    DGXR

    DGXR Well-Known Member

    Joined:
    Sep 1, 2009
    Member:
    #22094
    Messages:
    2,057
    Gender:
    Male
    First Name:
    Friend
    Sacramento, CA
    Vehicle:
    2006 2.7L SR5 2-wheel drive
    Occasional and/or slight pinging is normal because the computers try to maintain ignition timing right at the performance edge. This "normal" pinging should go away quickly. Also, higher mileage vehicles (like yours) tend to have some carbon buildup in the combustion chamber which can cause pinging. The fact that high octane stopped the pinging indicates that it is not a serious mechanical problem, so that is good news. You might pull a few easy access plugs and take a look with a bore-scope.
     
    05Taco4x4 and BassAckwards [OP] like this.
  5. Jun 3, 2019 at 3:53 PM
    #5
    BassAckwards

    BassAckwards [OP] Well-Known Member

    Joined:
    May 3, 2016
    Member:
    #186002
    Messages:
    24,402
    Gender:
    Male
    First Name:
    Robert
    TX
    Vehicle:
    '09 I4 5spd & '13 V6 6spd
    Interesting, im guessing the latter of the two is whats happening in mine because of age. I will have to invest in a bore-scope so i can take a peek at things. Thanks for the tip, Friend:fistbump:
     
  6. Jun 3, 2019 at 5:16 PM
    #6
    05Taco4x4

    05Taco4x4 ToyotaHubs

    Joined:
    Jun 29, 2011
    Member:
    #59085
    Messages:
    5,031
    Gender:
    Male
    Vehicle:
    2TR-FE Enthusiast
    FJ Tcase, Manual Hubs, 2017 Head unit, Mirror Riser
    Driver side of block, single bolt going through center of it
     
    BassAckwards [OP] likes this.
  7. Jun 3, 2019 at 5:34 PM
    #7
    BassAckwards

    BassAckwards [OP] Well-Known Member

    Joined:
    May 3, 2016
    Member:
    #186002
    Messages:
    24,402
    Gender:
    Male
    First Name:
    Robert
    TX
    Vehicle:
    '09 I4 5spd & '13 V6 6spd
    Ill take a look at this when it cools off, thanks man:thumbsup:
     
    05Taco4x4 likes this.
  8. Jun 3, 2019 at 8:08 PM
    #8
    05Taco4x4

    05Taco4x4 ToyotaHubs

    Joined:
    Jun 29, 2011
    Member:
    #59085
    Messages:
    5,031
    Gender:
    Male
    Vehicle:
    2TR-FE Enthusiast
    FJ Tcase, Manual Hubs, 2017 Head unit, Mirror Riser
    If your ECM pinout looks like this, then take the resistance across pins E4-29 & E4-30 and there won't be a need to remove that dang intake.
    This is for 2005-09, maybe is same for 2009? If not, get that manual and same idea applies.
    Inspection.jpg

    Knock control.jpg
     

Products Discussed in

To Top