S4's EGT Sensors Finally Replaced

Finally replaced both my driver and passenger side EGT Sensors. One was completely dead and the other was having intermittent issues. 

Passenger side was easy to replace, but the driver side was not fun... not fun at all! I'm convinced that there is some sort of speciality tool to get it out. I'll put it this way, it took way longer then the suggest 2 hours. Even with help from my friend Erik from I.P.M. Auto Service, it took a while to get it out. I hope I never have to replace those again.

Last on my list to replace is the Bank 1 & 2 Sensor 2 O2 Sensors. Those are the very rear sensors that you can easily get to from under the car. And finally replace a leaking EVap Purge Valve. Again another easy fix when I get the parts.

I can say that the car pulls harder with the EGT Sensors replaced. It's still hitting the same boost level but likely has a better air to gas mixture. Not really sure as I'm no expert. I'm still running into issues were the car will do this randomly and light bucking/surging when on partial throttle. Very noticeable going down a slight hill with the cruise control on. Already replaced the TB and now the EGT, so I'm running out of possible causes for it. Maybe there is bad motor mount allowing too much movement. Or a ICM is going bad. Not sure and I don't want to throw parts at it. Need to do some more research and testing....

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