1. Welcome to Tundras.com!

    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 Tundra discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Tundra owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Ask the Toyota mechanic!

Discussion in 'General Tundra Discussion' started by T-Rex266, Aug 15, 2015.

  1. Dec 30, 2020 at 4:42 PM
    #2101
    SprinterAE86

    SprinterAE86 New Member

    Joined:
    May 19, 2018
    Member:
    #15447
    Messages:
    956
    Gender:
    Male
    First Name:
    Ian
    Charlottetown, PE, Canada
    Vehicle:
    2012 Toyota Sequoia Platinum
    Bilstein 5100 2.3/1.5, TRD sway bars ft/rr, Cooper Tires Discoverer AT3 XLT 295.70.18, Vision Manx 2 18x9 +12, APS side armor steps, TRD-Pro Grill and Bulge, de-chromed, blackout emblems, OEM mirror caps and flares, TRD shift knob, Leather wrapped steering wheel, All weather mats
    I just replace the Air filter even though it was clean. I will clean the AF sensor tomorrow. I will also get the coolant temperature when it's below freezing. What temp should it be?

    Thanks!
     
  2. Dec 30, 2020 at 8:10 PM
    #2102
    Ruggybuggy

    Ruggybuggy New Member

    Joined:
    Sep 23, 2019
    Member:
    #36508
    Messages:
    1,431
    Gender:
    Male
    First Name:
    Dave
    NW ON, CANADA
    Vehicle:
    2020 Tundra SX
    It should read close to ambient temp if you dont start it.
     
    SprinterAE86 likes this.
  3. Jan 2, 2021 at 10:24 PM
    #2103
    SprinterAE86

    SprinterAE86 New Member

    Joined:
    May 19, 2018
    Member:
    #15447
    Messages:
    956
    Gender:
    Male
    First Name:
    Ian
    Charlottetown, PE, Canada
    Vehicle:
    2012 Toyota Sequoia Platinum
    Bilstein 5100 2.3/1.5, TRD sway bars ft/rr, Cooper Tires Discoverer AT3 XLT 295.70.18, Vision Manx 2 18x9 +12, APS side armor steps, TRD-Pro Grill and Bulge, de-chromed, blackout emblems, OEM mirror caps and flares, TRD shift knob, Leather wrapped steering wheel, All weather mats
    Thank you Dave!!
    I cleaned the MAF sensor and so far no p0308. I'll wait till spring or summer to replace the O2 sensor since I already made the purchase.
     
  4. Jan 2, 2021 at 11:20 PM
    #2104
    Ruggybuggy

    Ruggybuggy New Member

    Joined:
    Sep 23, 2019
    Member:
    #36508
    Messages:
    1,431
    Gender:
    Male
    First Name:
    Dave
    NW ON, CANADA
    Vehicle:
    2020 Tundra SX
    Nice, glad it worked out for you. Could you return the O2 sensor? Who is the manufacturer? Some of the aftermarket sensor are not reliable (Bosch).
     
  5. Jan 3, 2021 at 4:07 AM
    #2105
    SprinterAE86

    SprinterAE86 New Member

    Joined:
    May 19, 2018
    Member:
    #15447
    Messages:
    956
    Gender:
    Male
    First Name:
    Ian
    Charlottetown, PE, Canada
    Vehicle:
    2012 Toyota Sequoia Platinum
    Bilstein 5100 2.3/1.5, TRD sway bars ft/rr, Cooper Tires Discoverer AT3 XLT 295.70.18, Vision Manx 2 18x9 +12, APS side armor steps, TRD-Pro Grill and Bulge, de-chromed, blackout emblems, OEM mirror caps and flares, TRD shift knob, Leather wrapped steering wheel, All weather mats
    I got it from Amazon, Denso brand.

    I suffering with poor gas mileage. 10-11 mpg in city. I was able to do 12 -13. My 2016 and 2020 Tundra was never this bad. I am thinking there's an underlying issues that the ecm try to compensate but not severe enough to trigger a CEL.

    Any suggestions where to start and parameters to read? I do not have techstream, but my Launch reader can read almost everything.

    TIA
     
  6. Jan 3, 2021 at 6:47 AM
    #2106
    Ruggybuggy

    Ruggybuggy New Member

    Joined:
    Sep 23, 2019
    Member:
    #36508
    Messages:
    1,431
    Gender:
    Male
    First Name:
    Dave
    NW ON, CANADA
    Vehicle:
    2020 Tundra SX
    You mpg should go up now that you don't have the P0308. If your running 33s LT tires has mileage will suffer. Are you running a lift?

    Denso makes a good sensor. Which sensors did you buy? Pre cat or after cat? How many did you buy?
     
  7. Jan 3, 2021 at 8:16 AM
    #2107
    SprinterAE86

    SprinterAE86 New Member

    Joined:
    May 19, 2018
    Member:
    #15447
    Messages:
    956
    Gender:
    Male
    First Name:
    Ian
    Charlottetown, PE, Canada
    Vehicle:
    2012 Toyota Sequoia Platinum
    Bilstein 5100 2.3/1.5, TRD sway bars ft/rr, Cooper Tires Discoverer AT3 XLT 295.70.18, Vision Manx 2 18x9 +12, APS side armor steps, TRD-Pro Grill and Bulge, de-chromed, blackout emblems, OEM mirror caps and flares, TRD shift knob, Leather wrapped steering wheel, All weather mats
    I bought both last left and right. Post cat i belive. Pre cat was called air fuel sensor.

    I do have a lift, 2.5, but I was having better mpg before the move to Canada on 295.70.18. Mpg pulling the trailer from Florida to PEI was 10-12.
     
  8. Jan 3, 2021 at 11:44 AM
    #2108
    Ruggybuggy

    Ruggybuggy New Member

    Joined:
    Sep 23, 2019
    Member:
    #36508
    Messages:
    1,431
    Gender:
    Male
    First Name:
    Dave
    NW ON, CANADA
    Vehicle:
    2020 Tundra SX
    Welcome to Canada, cold weather kills mpg. Around town, cold weather, lifted and bigger tires all hurt mpg. Remember your computer won't report the correct mpg because of the bigger tires. You have to hand calculate.
    You could try the air/fuel ratio sensors but I suspect you won't see any major mpg change. If you don't mind me asking what did the sensors cost?
     
    AzureNightmare likes this.
  9. Jan 3, 2021 at 12:15 PM
    #2109
    SprinterAE86

    SprinterAE86 New Member

    Joined:
    May 19, 2018
    Member:
    #15447
    Messages:
    956
    Gender:
    Male
    First Name:
    Ian
    Charlottetown, PE, Canada
    Vehicle:
    2012 Toyota Sequoia Platinum
    Bilstein 5100 2.3/1.5, TRD sway bars ft/rr, Cooper Tires Discoverer AT3 XLT 295.70.18, Vision Manx 2 18x9 +12, APS side armor steps, TRD-Pro Grill and Bulge, de-chromed, blackout emblems, OEM mirror caps and flares, TRD shift knob, Leather wrapped steering wheel, All weather mats
    61.13 and 66.32 coming from the US shipped to Canada 146.45 USD The AFR sensor is more expensive than the O2.

    https://www.densoautoparts.com/find-my-part.aspx

    Go to know about the colt temps and mileage. I had no clue about about that. I know being lifted and larger diameter tires impacted my mileage, but did not know about cold weather condition affect it too. I know I waste a lot of gas with the remote start 2 to 3 times if the truck sat overnight and temp drops below 0.

    Thanks wo the warm/cold Canadian Welcome! Most people move to the warmth when they get old, I moved to the cold. LOL!
     
    Last edited: Jan 3, 2021
    Ruggybuggy likes this.
  10. Jan 14, 2021 at 1:08 PM
    #2110
    SprinterAE86

    SprinterAE86 New Member

    Joined:
    May 19, 2018
    Member:
    #15447
    Messages:
    956
    Gender:
    Male
    First Name:
    Ian
    Charlottetown, PE, Canada
    Vehicle:
    2012 Toyota Sequoia Platinum
    Bilstein 5100 2.3/1.5, TRD sway bars ft/rr, Cooper Tires Discoverer AT3 XLT 295.70.18, Vision Manx 2 18x9 +12, APS side armor steps, TRD-Pro Grill and Bulge, de-chromed, blackout emblems, OEM mirror caps and flares, TRD shift knob, Leather wrapped steering wheel, All weather mats
    This is how I got the package from Amazon. I'm not sure if the gap got compromised. Can you re-gap iridium spark plugs without damaging the tip?

    I have plenty of experience with re-gaping and even sanding conventional spark plugs, but with the iridium, I just install it as is.

    TIA

    20210114_145723.jpg
    20210114_145909.jpg
     
  11. Jan 14, 2021 at 1:17 PM
    #2111
    Ruggybuggy

    Ruggybuggy New Member

    Joined:
    Sep 23, 2019
    Member:
    #36508
    Messages:
    1,431
    Gender:
    Male
    First Name:
    Dave
    NW ON, CANADA
    Vehicle:
    2020 Tundra SX
    Measure and check. The gap is probably OK but I would definitely be in touch with the seller. If you do find th gap out a touch you can adjust but my concern is that if it took that kind of a hit the porcelain may be cracked.
     
    SprinterAE86 likes this.
  12. Jan 14, 2021 at 2:28 PM
    #2112
    SprinterAE86

    SprinterAE86 New Member

    Joined:
    May 19, 2018
    Member:
    #15447
    Messages:
    956
    Gender:
    Male
    First Name:
    Ian
    Charlottetown, PE, Canada
    Vehicle:
    2012 Toyota Sequoia Platinum
    Bilstein 5100 2.3/1.5, TRD sway bars ft/rr, Cooper Tires Discoverer AT3 XLT 295.70.18, Vision Manx 2 18x9 +12, APS side armor steps, TRD-Pro Grill and Bulge, de-chromed, blackout emblems, OEM mirror caps and flares, TRD shift knob, Leather wrapped steering wheel, All weather mats
    I did not even think about the porcelain. And it's going to be hard to tell if it had a hairline fracture until it fail. Thanks!
     
  13. Jan 14, 2021 at 8:30 PM
    #2113
    Ruggybuggy

    Ruggybuggy New Member

    Joined:
    Sep 23, 2019
    Member:
    #36508
    Messages:
    1,431
    Gender:
    Male
    First Name:
    Dave
    NW ON, CANADA
    Vehicle:
    2020 Tundra SX
    You could end up putting them in and have a misfire. If the gaps are ok and the package was padded well they would probably be ok. If you find some gaps out of spec or different from the others I would send them back.
     
    NewImprovedRon and SprinterAE86 like this.
  14. Jan 15, 2021 at 11:50 AM
    #2114
    BecauseRacecar

    BecauseRacecar New Member

    Joined:
    Jan 6, 2020
    Member:
    #40816
    Messages:
    53
    Gender:
    Male
    Ohio
    Vehicle:
    '20 Tundra SR5 DC 4x4 Magnetic Gray
    Just out of curiosity, what's a swing arm type or plate type lift? This apparently came out of the service manual and was posted on tundrasolutions.com. Wasn't sure if that included my standard floor jack I've used for other cars.

    [​IMG]
     
    rebmo likes this.
  15. Jan 18, 2021 at 8:15 AM
    #2115
    purplenova

    purplenova Not a new member

    Joined:
    Nov 9, 2018
    Member:
    #21513
    Messages:
    668
    Gender:
    Male
    First Name:
    Tom
    Ohio
    Vehicle:
    2016 Tundra Crewmax SR5
    Pillar Tape, Bullet Liner, 20% Tint, Tyger Star Armor Kenwood amp & AudioControl LC7i Tech12volts JL Tweeters
    Back again -
    This car is gonna drive me batty.

    I posted earlier about tpms issues happening on wife's RAV4 and the id4 sensor.

    Id4 tpms sensor replaced 2 1/2 weeks ago and all was well, until today.

    Wife was out driving and the dang light began blinking for about 90 seconds then goes solid. Hooked up TS and here are the codes.

    Also - the car has always had a viper remote start hooked up. I've read that the remote start connects to the tpms module, if this even matters.

    Hopefully someone can confirm or deny that.

    0117211817.jpg
     
    Last edited: Jan 18, 2021
  16. Jan 18, 2021 at 3:28 PM
    #2116
    Ruggybuggy

    Ruggybuggy New Member

    Joined:
    Sep 23, 2019
    Member:
    #36508
    Messages:
    1,431
    Gender:
    Male
    First Name:
    Dave
    NW ON, CANADA
    Vehicle:
    2020 Tundra SX

    I remember reading something about cutting one wire when installing a car starter and it had something to do with the tpms. I would disconnect the car starter, clear the codes and see if the problem returns.
     
  17. Jan 18, 2021 at 3:32 PM
    #2117
    purplenova

    purplenova Not a new member

    Joined:
    Nov 9, 2018
    Member:
    #21513
    Messages:
    668
    Gender:
    Male
    First Name:
    Tom
    Ohio
    Vehicle:
    2016 Tundra Crewmax SR5
    Pillar Tape, Bullet Liner, 20% Tint, Tyger Star Armor Kenwood amp & AudioControl LC7i Tech12volts JL Tweeters
    I didn't install it, a local shop did several years ago. They said they also used a t-harness and it was plug and play.

    Going to call them Tuesday and see what they say. Maybe i can unplug something to check if the remote start is acting up causing our problem.
     
  18. Jan 18, 2021 at 3:38 PM
    #2118
    Ruggybuggy

    Ruggybuggy New Member

    Joined:
    Sep 23, 2019
    Member:
    #36508
    Messages:
    1,431
    Gender:
    Male
    First Name:
    Dave
    NW ON, CANADA
    Vehicle:
    2020 Tundra SX

    One of the first things TASC ask us when we phone in is there a car starter installed. If we say yes they won't proceed to help you diag until you remove it. I would find the car starter module and just unplug it. It should be pretty easy to find.

    You can try calling the guys that did the install but they are going to say that their starter won't cause and issues. No way they are wanting to be on the hook to diag a starter that was put in several years ago.
     
    Green Thunder likes this.
  19. Jan 18, 2021 at 3:43 PM
    #2119
    purplenova

    purplenova Not a new member

    Joined:
    Nov 9, 2018
    Member:
    #21513
    Messages:
    668
    Gender:
    Male
    First Name:
    Tom
    Ohio
    Vehicle:
    2016 Tundra Crewmax SR5
    Pillar Tape, Bullet Liner, 20% Tint, Tyger Star Armor Kenwood amp & AudioControl LC7i Tech12volts JL Tweeters
    I have a good relationship with this shop after getting several cars modified by them over the last 10 years with pretty nice discount price.

    They know me and im not worried about getting assistance from them.
     
    Ruggybuggy likes this.
  20. Jan 19, 2021 at 5:33 AM
    #2120
    purplenova

    purplenova Not a new member

    Joined:
    Nov 9, 2018
    Member:
    #21513
    Messages:
    668
    Gender:
    Male
    First Name:
    Tom
    Ohio
    Vehicle:
    2016 Tundra Crewmax SR5
    Pillar Tape, Bullet Liner, 20% Tint, Tyger Star Armor Kenwood amp & AudioControl LC7i Tech12volts JL Tweeters

    Maybe I didnt share enough info on my post about calling the install shop.
    My reason for calling them is to find out where exactly the T-harness is connected so that I can disconnect the whole unit or if they can disconnect it all, and return the car back to its stock configuration.
    This way we all know if the RS is the issue or something in the TPMS system/loop.
     
  21. Jan 19, 2021 at 6:13 AM
    #2121
    Ruggybuggy

    Ruggybuggy New Member

    Joined:
    Sep 23, 2019
    Member:
    #36508
    Messages:
    1,431
    Gender:
    Male
    First Name:
    Dave
    NW ON, CANADA
    Vehicle:
    2020 Tundra SX
    The car starter taps into communication lines and sometimes this can be an issue. You should be able to find the T harness pretty quickly. Look under the dash by the steering column and follow the wires.
     
    purplenova likes this.
  22. Jan 20, 2021 at 12:11 PM
    #2122
    purplenova

    purplenova Not a new member

    Joined:
    Nov 9, 2018
    Member:
    #21513
    Messages:
    668
    Gender:
    Male
    First Name:
    Tom
    Ohio
    Vehicle:
    2016 Tundra Crewmax SR5
    Pillar Tape, Bullet Liner, 20% Tint, Tyger Star Armor Kenwood amp & AudioControl LC7i Tech12volts JL Tweeters
    Didnt find the entire harness, but did speak to the shop that did the install and got some more information regarding the TPMS module or connection to it.
    Im waiting to get a call from the manager here in about an hour and also found documentation on my installed unit.

    Looks like in pic1 there is some sort of connection going on with the wire harness from the RS unit into the TPMS module on the pass side kick panel
    The SIL interrupt or something like that.

    One step closer...

    Update: talked to the install shop for the RS.
    The #13 pin/wire in the TPMS ECU can be cut or not.
    It all depends if the owner wants to be able to lock the doors
    while the car is running with the OEM FOB.

    They said if the OEM fob locks while running, the wire has been cut
    and reattached to their harness.

    Still think the issue is right here !!!

    remote1.jpg remote2.jpg
     
    Last edited: Jan 20, 2021
    Ruggybuggy likes this.
  23. Jan 20, 2021 at 1:41 PM
    #2123
    Ruggybuggy

    Ruggybuggy New Member

    Joined:
    Sep 23, 2019
    Member:
    #36508
    Messages:
    1,431
    Gender:
    Male
    First Name:
    Dave
    NW ON, CANADA
    Vehicle:
    2020 Tundra SX
    Your making progress!
     
  24. Jan 21, 2021 at 10:26 AM
    #2124
    purplenova

    purplenova Not a new member

    Joined:
    Nov 9, 2018
    Member:
    #21513
    Messages:
    668
    Gender:
    Male
    First Name:
    Tom
    Ohio
    Vehicle:
    2016 Tundra Crewmax SR5
    Pillar Tape, Bullet Liner, 20% Tint, Tyger Star Armor Kenwood amp & AudioControl LC7i Tech12volts JL Tweeters

    Update: from the diagram i posted earlier - the pin 13 wire has been split and a larger gauge wire was spliced into it.

    From talking to the install shop, this splice was done so that the factory fob can be used to start and stop the car.
    The auto repair shop found that using the remote start was giving some weird feed back of signals during their
    diagnostic test of the TPMS system.

    So we will be removing that splice and reconnecting the oem wires back together. Sure hope this ends this drama.
     
  25. Jan 21, 2021 at 11:07 AM
    #2125
    John175

    John175 Not Sure

    Joined:
    Feb 19, 2020
    Member:
    #42850
    Messages:
    431
    Gender:
    Male
    North Texas
    Non-stop mods
    Great news! This is why I am hesitant to install a remote start. :cheers:
     
    purplenova likes this.
  26. Jan 21, 2021 at 11:27 AM
    #2126
    purplenova

    purplenova Not a new member

    Joined:
    Nov 9, 2018
    Member:
    #21513
    Messages:
    668
    Gender:
    Male
    First Name:
    Tom
    Ohio
    Vehicle:
    2016 Tundra Crewmax SR5
    Pillar Tape, Bullet Liner, 20% Tint, Tyger Star Armor Kenwood amp & AudioControl LC7i Tech12volts JL Tweeters
    I wouldnt be hesitant to do the RS. Just have a conversation with the shop about splicing into the factory stuff and why that matters.
    That conversation never took place when we had the RS installed several years back and this shop has done a lot of our work in the past without an issue.

    We shall see how this holds up. But sounds like we are good to go.
     
    Ruggybuggy likes this.
  27. Jan 22, 2021 at 12:18 PM
    #2127
    SprinterAE86

    SprinterAE86 New Member

    Joined:
    May 19, 2018
    Member:
    #15447
    Messages:
    956
    Gender:
    Male
    First Name:
    Ian
    Charlottetown, PE, Canada
    Vehicle:
    2012 Toyota Sequoia Platinum
    Bilstein 5100 2.3/1.5, TRD sway bars ft/rr, Cooper Tires Discoverer AT3 XLT 295.70.18, Vision Manx 2 18x9 +12, APS side armor steps, TRD-Pro Grill and Bulge, de-chromed, blackout emblems, OEM mirror caps and flares, TRD shift knob, Leather wrapped steering wheel, All weather mats
    Could this be the issue I am having?

    static.nhtsa.gov › odi › tsbsPDF
    Web results
    Extended Crank and/or MIL ON With DTC P0171, P0174, P0172, P0175 ... - NHTSA
     
  28. Jan 22, 2021 at 9:44 PM
    #2128
    Ruggybuggy

    Ruggybuggy New Member

    Joined:
    Sep 23, 2019
    Member:
    #36508
    Messages:
    1,431
    Gender:
    Male
    First Name:
    Dave
    NW ON, CANADA
    Vehicle:
    2020 Tundra SX
    Some of the Tundras with the extended crank had an issue with the fuel pump. The check valve would fail and wouldn't hold fuel pressure. Restarts were fine but anytime the truck sat for a period of time it would take an extended crank for them to start.
     
    SprinterAE86 and Wynnded like this.
  29. Jan 23, 2021 at 6:27 AM
    #2129
    JohnLakeman

    JohnLakeman Burning Internet Daylight

    Joined:
    Feb 21, 2019
    Member:
    #26430
    Messages:
    2,570
    Gender:
    Male
    Outside of Weird, TX
    Vehicle:
    2017 MGM DC TSS 4.6L
    TRD Pro grille, 2018 LED Headlights, Undercover Flex bed cover, Neoprene seat covers, Bed/tailgate mats, Power tailgate lock, auto headlights, illuminated key switch
    Lifting point diagrams were once standard in owner manuals, but I suspect that most of the OEMs frown on owners lifting vehicles anymore. That diagram may be from a Tundra Owner Manual, but not one published recently. There is no lift point diagram in my 2017 OM, only a diagram of jacking points for tire changing.

    Anyway, a "swing arm lift" is a two post lift that has four adjustable arms with lifting pads that contact the frame. I am not certain, but I suspect a "plate type lift" is an old-fashioned, in-the-ground hydraulic cylinder lift (one for each end) with a cradle or plate to contact the rear axle and front suspension. Apparently, the diagram posted on TS only wants a drive-on lift, like a four-post lift, used.
     
To Top