Ok guys, need some advice. I installed new T500, Sinister RR, and FFD 238/100's. Install went smooth and no leaks. Initial start up was as expected and seemed to idle well before buttoning up the valve covers. After driving, it had a really rough idle. It only idles really rough after warm up and/or a WOT run. Runs like a raped ape if I mash the skinny pedal, but every time I come to a stop it idles like it wants to die. Over 200 miles so far and been pissed for about 150 of them. I emailed DP and Justin replied he thought maybe ICP or O-ring on injector. Since injectors are just installed from FFD, I suspected the ICP sensor. It did have a small amount of oil in the connection and exposed wires on the connector. I replaced the sensor and the pigtail yesterday and got raped by the stealership for both parts...209.00 ICP, 94.00 pigtail. Installed both and the idle is WAAAY worse and now I get a P-1210 code as soon as key is turned and it idles like absolute crap. Help me out here guys... I was hoping all this would help the truck not make it worse. No AE to run diagnostics, but may meet up with another member here in town next week to use his. Truck ran fine with existing sensors and now has new ICP.