Someone is playing a cruel, cruel trick on me. I got the same "driver" as last time, and had exactly the same fiasco as last time.

First test wasn't accepted. Hose fell off on the second test, and the "driver" miserably failed to maintain speed on the second test. Just... like... last time!!

How is that POSSIBLE?!

Only this time the second test was accepted by the manager. Despite how badly the "driver" blew it in the highway driving section, no doubt making my numbers much worse than they should have been.

To top it all off, despite leaner jets, the truck failed worse than before on CO and HC!

Last time: HC=3.8015, CO=62.2980, NOx=6.5254
This time: HC=4.7772, CO=82.9261, NOx=4.7884

I'm in a quandary about what to do next. I can go another two stages leaner on the jets, but I suspect the accelerator pump -- and the "driver's" gratuitous use of it -- is hurting the most. For that matter, the power valve might be the biggest source of trouble and may need replacing.

The hot temperatures probably aren't helping either. I could take it in during the early morning hours. To a different facility in hopes that I get a competent driver. Should I take it into the testing facility tech center for diagnosis? Or to a local carb specialist? Or just install the fuel injection system that's ready to go in the garage?

What boggles my mind is that last time TC passed two years ago, the truck posted outstanding numbers. This time around I'm on my fourth test failure. What gives?! I mean, besides the fact that NOx and HC limits got stricter...