Im using HP Tuners to log - i repolled parameters and got KR* to show up now. Ran a few more pulls tonight and not showing any KR which should mean either things are safe n sound or the sensors are garbage - uploaded the log file in case any of our local experts care to peak. I definitely dont like holding it pinned through the sputtering but im hoping something pops out. All I really notice here is in 4th gear "feathering" at medium boost/throttle/load levels (this is where it pulls smoothly, just below sputtering) I have a ton of negative short term fuel trim -30%, which goes right back to 0% - ish after mashing the throttle. Confirmed the same thing in another log while feathering the throttle. This was my first drive having the stock O2 sensor reconnected since I just found the 2nd bung for my wideband sensor, which may be adding to the big short term trims?
I am at a point now where it might make sense for me to call ZZP and see if they can offer anything to help out. I'm also not opposed to going the new crate engine route or doing some major upgrades (pistons, rods, ZZP stage 2 head/cam/valve kit, etc) but I'm trying to hold off until after August when we are suppose to try to run this thing from MSP to Chicago and back. What still confuses me here is one day 2 weeks ago when it "magically" worked great for a half hour and then went back to the sputter. Makes me feel like it is something similar to what Motoracer said above (which I will try by the way - Thank you!)
I've kind of ignored these DTC's thinking they are from things that were disconnected during the build, can anyone confirm?
0x7E8: P0030 - HO2S Heater Control Circuit (Bank 1, Sensor 1) (Current, Old, History)
0x7E8: P0481 - Fan 2 Control Circuit (SES, Pending, Current)
0x7E8: U0121 - Lost Communication With Anti-Lock Brake System (ABS) Control Module (Old)