You and I both know its not the same issue.
Also, SAI pumps are only covered for 3/36. You should know this. It changed in certain states for 08MY.
You're correct that the OP's DTC is not specifically covered under TSB-0160-11, but that does not mean that the OP's symptoms are not related to the issues outlined in the DTC.
If you reference TSB-0230-12, which is an updated TSB designed to provide diagnostic criteria for other vehicles with 2UZ-FE engines (seems to be the VVTi-Equipped units for both TSBs) you'll see that they want to try replacing the Driver for the Air Injection pumps first. Yet towards the end of the TSB they outline diagnostic criteria for failing the Air Injection Pumps and requiring replacement. While this is in no large way an admission of guilt, it does roll into the fact that TSB-0160-11 details how MULTIPLE engine families shared in the Tundra/Sequoia have a potential to accrue too much moisture into the pumps and valve assemblies which can cause problems. The 2UZ-FE in the Tundra/Sequoia is not different than the 4Runner or Landcruiser applications in which the VVTi-equipped units are used. This would infer that the parts are just as susceptible to failure, Toyota even mentions Debris in TSB-0230-12 (which as you pointed out could also be due to deteriorated foam material, I won't discount that at all), debris that could be the result of moisture eroding internal components as seen in the Tundra/Sequoia.
As for warranty coverage, TSB-0160-11 also details that select states (including California) have an extended 84mo/70k emissions warranty covering these components. Additionally TCP-ZTQ-0001-D (Campaign Publication Documentation) supplements the existing TSB with a Warranty Extension pushing that warranty to 10yr/150k from vehicle first use date for these afflicted vehicles as long as the conditions can be replicated and/or have be documented prior to 10yr/150k period.
Documentation for review:
View attachment T-SB-0160-11.pdf
View attachment T-SB-0230-12.pdf
View attachment T-CP-ZTQ-0001-D.pdf
I am only trying to point out that there is plenty of evidence to show that Toyota is aware the issue extended among a large selection of 2UZ-FE Engines, but they have only chosen to specifically cover the Tundra/Sequoia. This is despite having evidence and knowledge that similar failures will occur in the other 2UZ-FE equipped vehicles, they simply have chosen to ignore that and at the very least use TSB-0230-12 to try and mitigate responsibility. This is not the first time Toyota has blown off evidence of a design flaw and/or delayed a TSB to exclude a large number of affected vehicles (see
http://www.toyota-4runner.org/4th-gen-t4rs/124377-t-sb-0121-12-its-finally-here.html ) There are other examples including the possible cylinderhead gasket issue that seems to be mainly isolated to '05 or older 4Runners (yet, mainly failures are below 100k), of which there seems to be a decent amount of evidence to show there was not only an issue, but that the failed part was silently superseded.
