the OP has already laid out a scenario to explain against that. I wont do it again.
I just don't understand why so many people are against an actual solution. why none of you can admit that Toyota ****ed up with this. is it a pride thing? I just don't get it.
Because the actuality of this happening runs right up there with you getting hit by lightning.
So far we have one case and that was hearsay. I know of two cases where a 4Runner went into limp mode and they were real problems that needed limp mode. So, lets say only 10% of 5th Gen 4Runner owners come to this website. That's 45K in the past seven years. We also know that people who could possibly have this problem come here too. We also know that anytime anyone has a problem with anything they post it on the internet.
With all that said, in respect to the 4Runner throwing codes and causing systems to shut down, we have a whopping grand total of 3-4 people and only ONE has been in the wild.
Your odds of getting struck by lightning are 1:12,000. So far, your odds of having this happen and shutting down 4WD when you need it are 1:22,500 (he might have said two people so I am giving him the benefit of the doubt here). So, why is this a real problem again? Oh, because it's on the internet that's why.
If there's lightning in the area you take cover. That's the prudent thing to do.
If you are off roading and far away from civilization, you carry a code reader and reset your fault. How much more is there to this?
I agree that bring it up and discussing is important, but truly it does not happen every day to multiple people. As a matter of fact, you have maybe two cases in seven years and 450,000 (+-) units. To me that's not pride, that's common sense. Toyota knows more than we do probably (how did they F up?) and after several pages, there is no solution other than resetting codes.
Toyota protects their vehicles from the dumbassery of some of their owners, and after reading this forum for the past six years they are right to do so. From their standpoint, it's a lose-lose scenario. To the average consumer, if you ruin the engine they will blame Toyota for not having a shut down before it happened. To the enthusiast (a lot less of us than consumers) we blame Toyota for HAVING systems protection.
Now, just because we don't understand why a loose gas cap is a problem does not mean a loose gas cap can't cause a problem if the vehicle continues to operate.
"Solving problems you didn't know you had in ways you don't understand" is a perfect quote for this application.