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

Secondary Air Injection Pump failure

Discussion in '2nd Gen Tundras (2007-2013)' started by jtx0741, Feb 27, 2019.

  1. Oct 3, 2021 at 12:20 PM
    #181
    Cyrus747

    Cyrus747 New Member

    Joined:
    Oct 3, 2021
    Member:
    #68861
    Messages:
    2
    Gender:
    Male
    Anyone provide any guidance or suggestions on how to get the exhaust piece to separate so I can install the plates? I tried the wood trick and its not working. Both sides are sealed solid...
     
  2. Oct 4, 2021 at 6:18 AM
    #182
    Bucks04

    Bucks04 New Member

    Joined:
    Jan 27, 2018
    Member:
    #12467
    Messages:
    513
    Gender:
    Male
    Vehicle:
    2013 TRD Tundra
    Working on it
    I would get a hold of Hewitt and verify , but I don't think you have to put plates in . I did anyway , but mine came apart pretty easy. My kit didn't have plates and when I called them they said they weren't needed , but sent me some anyway if I wanted to block off , but said not needed.
     
  3. Oct 4, 2021 at 3:54 PM
    #183
    Cyrus747

    Cyrus747 New Member

    Joined:
    Oct 3, 2021
    Member:
    #68861
    Messages:
    2
    Gender:
    Male
    Thanks, sent them an email. I thought both the new module and the plates needed to go together.
     
  4. May 14, 2022 at 8:26 AM
    #184
    Psu921

    Psu921 New Member

    Joined:
    May 14, 2022
    Member:
    #78389
    Messages:
    2
    Gender:
    Male
    First Name:
    Scott
    Vehicle:
    2010 Maroon Tundra 4.6L
    I have a 2010 Tundra 47k miles. Work from home so don’t drive it much. Started having this issue. I don’t get emissions test due to the low mileage I drive a year, so seems the bypass kit is the way to go. Now just have to find one.
     
  5. Jun 13, 2022 at 10:30 AM
    #185
    sylobeg

    sylobeg New Member

    Joined:
    Jun 7, 2022
    Member:
    #79279
    Messages:
    11
    Gender:
    Male
    Hi there, I just called Hewitt and they said the block plates ARE needed. Just saying
    I am trying to get mine apart, wish me luck
     
  6. Jun 13, 2022 at 10:58 AM
    #186
    Psu921

    Psu921 New Member

    Joined:
    May 14, 2022
    Member:
    #78389
    Messages:
    2
    Gender:
    Male
    First Name:
    Scott
    Vehicle:
    2010 Maroon Tundra 4.6L
    @sylobeg thanks for the info. I did buy the kit but I also replaced my battery as the truck is 12 years old and has never been replaced. All the indicator lights have not come back on. I will hold onto the kit just in case it is needed.
     
    Leo's first likes this.
  7. Jun 13, 2022 at 1:18 PM
    #187
    Leo's first

    Leo's first TRUCK GANG

    Joined:
    Sep 6, 2017
    Member:
    #9490
    Messages:
    5,573
    Gender:
    Male
    First Name:
    Mike
    Groton ma
    Vehicle:
    2007 Tundra Limited CM Pyrite Mica
    Install the bypass you don’t need the blocking plates if the valve isn’t stuck open
    Install kit to prevent valves or pumps from operating (malfunctioning)
     
    BlueCrushSC16 likes this.
  8. Jun 13, 2022 at 2:07 PM
    #188
    sylobeg

    sylobeg New Member

    Joined:
    Jun 7, 2022
    Member:
    #79279
    Messages:
    11
    Gender:
    Male
    Ok, Is there another way to block the tube? I tried to loosen the nut and the stud broke. It was coding at a 1444 and 1441
     
  9. Jun 13, 2022 at 2:44 PM
    #189
    Leo's first

    Leo's first TRUCK GANG

    Joined:
    Sep 6, 2017
    Member:
    #9490
    Messages:
    5,573
    Gender:
    Male
    First Name:
    Mike
    Groton ma
    Vehicle:
    2007 Tundra Limited CM Pyrite Mica
    Damn that sucks man!
    Not that I’m aware of.
     
  10. Oct 5, 2022 at 7:56 AM
    #190
    HewittTech01

    HewittTech01 Dont Replace SAIS, Bypass It!

    Joined:
    Sep 21, 2022
    Member:
    #83702
    Messages:
    81
    Gender:
    Male
    Lexington, SC
    Vehicle:
    Secondary Air Injection System Bypass Kit
    @osidepunker as Paul mentioned above our recommended solution is the Gen 2 Bypass Kit. It is our most comprehensive bypass kit that will address both mechanical and electrical SAIS fault codes. The only codes it would not address is any related to damaged pressures sensor. If you had a damaged pressure sensor then a kit addon would be required. That said, the Gen 2 Bypass Kit and two Pressure Sensor addon would be a full delete kit of the SAIS. The only thing we require in good working condition after installation of the full delete kit is the Vehicle’s Factory Wiring and ECM. I have provided some additional thread resources below.

    What Does the Secondary Air Injection System Do?
    https://www.tundras.com/threads/what-does-the-secondary-air-injection-system-do.113683/

    What Do My Secondary Air Injection Error Codes Mean?
    https://www.tundras.com/threads/what-do-my-secondary-air-injection-error-codes-mean.113686/

    How to Fix Secondary Air Injection System?
    https://www.tundras.com/threads/how-do-you-fix-the-secondary-air-injection-system.113688/
     
  11. May 20, 2023 at 12:16 PM
    #191
    apfireman41

    apfireman41 New Member

    Joined:
    May 20, 2023
    Member:
    #97291
    Messages:
    1
    Gender:
    Male
    First Name:
    Anthony
    Vehicle:
    4.6L V8 2013 Tundra
    5100 Bilstein struts/shocks x 4, Timbren SES bumpstops, aftermarket wheels/tires. Aftermarket speakers/amp, modified rear seat to fold down.
    I just recently replaced the Bank 1 secondary air injection pump on my 2013 4.6l v8 Tundra, this is about 1 year after replacing the bank 2 pump. I've had the truck about 10 years and have approx 83,000 miles on it. I'm thoroughly disappointed to have to replace a part that seems to basically be disposable, and that I am willing to bet, Toyota built to last just past 100,000 miles. The snorkel air inlet on mine appears to have been redesigned from the prior models to hinder entry of water into the snorkel intake. But after taking the old pump off and some inspection of it, I found that the motor that powers the air pump is a brushed motor. With two brushes, one on either side of the motor/commutator, and one of those completely worn out. I hooked up the pump to a power source and it did not operate. I'm sure if the brushes were replaceable, that the motor would continue to operate. None of this would be a big deal if it weren't a repair that cost thousands of dollars to replace. To replace a relatively simple and low cost part. It took longer to remove/replace the fender skirt than anything else. Toyota really should be stepping up to cover this required-for-emissions-only system.
     
    HewittTech01 likes this.
  12. May 23, 2023 at 2:27 PM
    #192
    HewittTech01

    HewittTech01 Dont Replace SAIS, Bypass It!

    Joined:
    Sep 21, 2022
    Member:
    #83702
    Messages:
    81
    Gender:
    Male
    Lexington, SC
    Vehicle:
    Secondary Air Injection System Bypass Kit
    @apfireman41 It is very disappointing especially as you mentioned for a system that has very little impact on actual emissions. The SAIS only runs for 30 - 90 seconds after a cold start (engine sitting 7 hours or longer) then shuts off once the Cats get up to operating temperature. What makes it worse is even if you do replace it, it is very likely to fail again in the future.
     
  13. May 24, 2023 at 11:40 AM
    #193
    Retroboy1989

    Retroboy1989 'Course it's 4x4!

    Joined:
    Mar 9, 2021
    Member:
    #60209
    Messages:
    1,003
    Gender:
    Male
    Northern Utah
    Vehicle:
    2012 DC 4x4 5.7 SR5 TRD OR Barcelona
    Snug top 20" TRD Sport wheels 275/60R20 Tires Additional Trans Cooler
    If mine ever fails, it's a bypass kit for me.

    2012 w/ 55,000 miles
     
    HewittTech01 likes this.
To Top