Greetings.. I'm buying an '02 Avalon with the 1MZ-FE V6 engine... I've been seeing rumors of knock sensor issues.. some say it's wiring failure because the knock sensors are under the intake manifold, some say the factory knock sensors are just too sensitive and retard the ignition unnecessarily... Do you know of any legitimacy to these claims? How are they best addressed? I saw one where the knock sensor was relocated to the engine mount bracket with new wiring to resolve trouble code issues... would this disable the sensors ability to detect a knock?
@hogdoctor
Bumping up.
generally it would make it not be able to recognize and not but then again Toyota engines are generally so well made they don't even need knock sensors it's kind of a federal law thing that they're supposed to have them for pollution reasons. But they do go out I personally haven't seen the wiring harness go bad I just see the sensors go out they wear out over time then you got to pull the intake off which is a giant pain
I don't know if Scotty would approve, but I had an 01 Sienna with the same engine. The knock sensor for one bank went out, so I wired both knock sensors to the other bank - figuring that if it was going to knock on the one bank, it was going to knock on the other. Worked fine for another 100K + miles.
