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The point I have is nox is lower than it will be when the hc problem is cleared up. High hc will cause low nox, not saying his nox is too low because nox cant be too low. So when the hc is fixed the nox will be up.

If not the fuse then go before it and check the fusable link in line before the fuse, its the small wire coming off the positive battery terminal.

Make sure you got the grounds put on the motor, the one near the back of the exhaust and the two eyelets on the intake.

Turbo cannot leak coolant into the intake because the coolant goes around the center housing and is not sealed by a gasket or anything, I guess there could be a crack but not likely. What is the condition when the miss happens? Guessing you are saying in 4th and 5th so it may be a load issue...

Nox is from low cyl temps, low cyl temps probably caused by the high HC, HC is unburnt fuel ie too much gas. Meaning nox is the way it is because of low cyl temps, low cyl temps is because hc is unburned fuel, unburned fuel is carrying the heat from the cyl. Hence low nox and high hc.

OP what are the conditions of the missfire, ie only at idle, only under x amount of throttle, what is the load ect. pro flow 62mm throttle body from rabid chimp this is one thing that sticks out to me though, because it will throw tps vs airflow out of whack.

I am working my ass off every night till 8:30 to get my car and my wifes car done, got 4 valve seals left to do so hers will be done tomorrow. Mine will be ready in a week or so, at least ready enough to drive. I have to go get the tag reinstated. I am going to go ahead and chime in for Adam...

This is one thing I had go wrong with mine that gave me the clunk I was talking about, they are very strange as as Poodles said are not like normal bushings but more like a pivot joint. They were not fun to replace even with a press. That is what was giving me the clunking sound while taking...