๐ฏ The Verdict
If you searched for the toyota tundra air injection recall, you are almost certainly chasing a P2440, P2442, P0418, or P0419 code. The good news: Toyota has a documented fix. The bad news: it is not a free recall for everyone, and the parts alone push past $1,200.
๐ฐ The Numbers
Here is what the secondary air pump and switching valve job actually costs in 2026, based on shop quotes pulled from AmpAuto Help threads and Tundra forum data.
| Repair Path | Parts | Labor | Total |
|---|---|---|---|
| Toyota Dealer (full job) | $1,400 - $2,000 | $400 - $1,500 | $1,800 - $3,500 |
| Independent Shop | $900 - $1,400 | $300 - $800 | $1,200 - $2,200 |
| DIY (OE parts) | $900 - $1,300 | 6-9 hours | $900 - $1,300 |
| DIY (aftermarket Dorman) | $450 - $700 | 6-9 hours | $450 - $700 |
| Customer Support Program | Covered | Covered | $0 |
The big variable is whether you replace both air switching valves (AISV), the air injection pump, and the relay all at once, or just the pump. Most Toyota techs strongly recommend doing the whole system together because the valves stick open and dump moisture into the pump, killing the new pump within 30,000 miles otherwise.
๐ Affected Vehicles and TSB Details
The TSB and Customer Support Program apply to the 5.7L 3UR-FE V8 only. The 4.6L and 4.0L engines use a different emissions architecture and are not affected.
- 2007-2017 Toyota Tundra 5.7L V8 (CrewMax, Double Cab, Regular Cab)
- 2008-2017 Toyota Sequoia 5.7L V8
- 2008-2017 Toyota Land Cruiser 5.7L V8
- 2008-2017 Lexus LX570 (same engine, same failure)
What the TSB calls out
T-SB-0094-14 (and its later revisions) describes a condition where the air switching valves fail in the open position, allowing exhaust pulses to push moisture back into the air injection pump. The moisture corrodes the pump motor brushes and seizes the impeller. Toyota's documented fix is to replace both AISVs (left and right banks), the air injection pump, and inspect the relay and wiring. Look for P2440, P2442, P0418, or P0419 in your scan data to confirm.
โ When the Customer Support Program Covers You
To check status, call any Toyota dealer with your 17-digit VIN and ask them to look up "open campaigns" and "Customer Support Programs" specifically, not just safety recalls. Many service writers will say "no recalls" and stop there. Push them to check CSPs too. The relevant programs have used internal codes including ZE7 and similar identifiers over the years.
If you bought the truck used and the previous owner never registered the address change with Toyota, you may not have received the mailer. The coverage still applies as long as the VIN qualifies.
โ ๏ธ Common Mistakes Owners Make
- Replacing just the pump. The stuck-open valves are the root cause. A new pump alone usually fails again within a year. Always replace both AISVs together.
- Assuming Dorman or aftermarket is fine. The Dorman 949-300 kit is popular and saves real money, but several Tundra forum threads report higher early-failure rates than OE Aisin parts. If you plan to keep the truck past 200,000 miles, OE is worth the upcharge.
- Ignoring the relay. The air pump relay sits in the engine bay fuse box and is a $25 part. Replacing it at the same time prevents an avoidable repeat visit.
- Letting the CSP expire. If your truck is at 9 years and 140,000 miles with no codes, do not wait. Have the dealer document any audible whine or rough cold start now so the paper trail exists if the CSP applies later.
- Trying to clear the code and sell. The readiness monitors will not reset until the system actually passes its self-test, which it cannot do with bad valves. Buyers running a pre-purchase scan will see it.
๐งญ Decision Framework
Use this to decide your next move based on your truck's specifics.
| Your Situation | What To Do |
|---|---|
| Under 10 yrs AND under 150k miles | Call Toyota dealer. Ask for CSP lookup by VIN. Get the repair documented even if you pay upfront, then file for reimbursement. |
| Over 10 yrs OR over 150k miles, keeping truck | Independent shop with OE parts. $1,200 to $2,200. Replace both AISVs, pump, and relay. |
| Over coverage, selling within 6 months | Disclose the code, price accordingly. Bypass kits will not pass a buyer's inspection. |
| Mechanically inclined, garage access | DIY with Dorman 949-300 kit. Budget 6-9 hours. Plan for one or two stuck bolts and a heat gun. |
| Code just appeared, no driveability issues | Run a free AI scan first. Confirm it is the AIS and not an O2 sensor or evap leak masquerading as similar symptoms. |
โ Frequently Asked Questions
๐ Bottom Line
The Toyota Tundra air injection issue is real, well documented, and fixable, but it is a TSB plus a limited Customer Support Program, not a blanket safety recall. Step one is always a VIN lookup at a Toyota dealer. Step two is a proper scan to confirm the codes point at the AIS and not a different emissions fault. Step three is replacing the whole system at once: both AISVs, the pump, and the relay. Skipping any of those steps usually means paying twice.
If your check engine light is on right now and you are not sure whether you are looking at the air pump, an O2 sensor, or an evap leak, start with a code scan and get a vehicle-specific ranked diagnosis before you spend a dollar on parts.