Very good … sounds like the AFM and the CP have flawless movability.I tried all these tests and they've all been passed, except for centering the plate ...
Probably your feeler gauge doesn‘t taper at its end, right? … Instead of a feeler gauge, you can also use something else, like a needle … or a real good eye .... Is there a trick to this test, or are circular feeler gauges (at .5 mm) an option? ...
I hope you did the o2 sensor voltage tests correctly … especially with the very different and implausible readings you reported in posts #34 and #36 I wonder how you measured that. You did not, for instance, connect the wrong part of the o2 sensor connector (the female part that‘s coming from the sensor, instead of the male part) directly to ground with a wire while you did the tests, did you ? … And you reconnected the connector properly, right ?... since completing the o2 sensor tests my check engine light has come on. I pulled the code and got 5 blinks. If the chart I'm reading is correct this indicates a fault with the o2 sensor.
Besides the movability of the AFM and the CP and the position of the CP, I mentioned three more possible reasons for your problem in post #39 … (based on the o2 sensor voltages you reported in post #38).
And if these values - especially the value of test #4 - are reliable, I add two more suspects:
- the EHA
- and the restrictor in the FD
I‘ll give you further test suggestions after your feedback about my concerns regarding the o2 sensor tests you did.