Okay, for those who are interested:
I've now installed the AEY injectors in my 1Z engine. The driving experience is neither better nor worse. I'm actually disappointed; I had hoped that new injectors would make a big difference...
No, I thought the engine sounded different or something.
Conclusion: AEY nozzles also work in the first gear (at least in mine). I have no idea where the difference is...
Conclusion No. 2: My injectors probably aren't the originals anymore, considering they have over 219,000 km on them. That means they are actually still in good condition. I've also never had any problems with excessive oil consumption, soot, or diesel exhaust fumes.
Starting Monday, it will be available on eBay.
My next project will focus on combating jerky movements. I just need to figure out how to get the money for the new pump.
Follow-up: My old nozzles came out quite well...
