I started with a new project with no engine at all. Grabbed a low mileage vortec 454 from my brother and re-sealed it, machined heads, ZZ502 cam, all new valvetrain to match the cam, 44lb injectors from Five0Motorsports, contacted LEXTECH for the 0411 info, per his wiring I did the full 0411 swap, plus the engine was assembled with the 24x dual pattern reluctor wheel, and I grabbed some coil wiring from a junk ls harness I had and pinned everything accordingly. I purchased all of my HP Tuners hardware before the truck was ever ran, Jeff flashed the 0411 for me to atleast get the truck started. I have longtube headers on the truck with dual 3" exhaust right now.
I finally searched for days and grabbed a few tunes I could fine to go over the tune I had on the truck and do some comparing because we are running with a ls truck tune. The truck will currently fire up and idle, even have all of my ac working now, I have driven it around the block and made one log so far. I have my AEM wideband in the truck right now but im still hassling with getting the prolink to get the data into my logs because this is all new to me. I have never sat down and tuned any OBDII stuff so this is my own new adventure learning this and playing with my new to me truck. I will upload my current tune and 1 log file so far. My biggest issue before I start dialing in my MAF tuning is, judging by the narrowbands, I have bank 2 running super fat and bank 1 with the wideband is idling right around 13.5-14.1. I read another thread that was like 3 years old about another 0411 swap with the banks running unbalanced and that is killing me, along with any throttle tip in, it jumps SUPER lean. My main concern before I work on the tune one step at a time is help figuring out why bank 1 and 2 are running imbalanced, and trying to figure out why any throttle jumps SUPER lean and it will not drop into gear without peddling it the slightest bit.
Thanks in advance, I figured after spending the last few weeks searching the forums and combing over the tune again and again I would try to jump on here and finally ask for advice.
On a final note, I turned off the LT & ST fuel trims because with the banks running so far off, it was going all the way up to about 25% on bank2 for the long term and would just about kill the truck idling.LEXTECH 24x CNP idle1 closedloop only.hptMAF only test drive.hpl