I have had too many problems with my truck, and have determined that I need to do a DBC conversion. I have an 05 Silverado 5.3 Magnacharger with a 4l80e swap. My truck often times would go into REP mode at WOT, and I would get a P1516 code. I lived with it by just leaving my controller plugged in the ODBII port, and clearing the codes when I was driving. It would do it as I was crossing the traps at the strip, so it wasn't all the time that it happened. I recently switched my supercharger pulley from a 2.9 to a 2.6, and it went into REP every single time I drove it. At part throttle I would get a P2101, and if I made it to full throttle I would get a P1516. There is no way I could come close to a 1/4 mile pass. Earlier today I was trying to find a bad wire or something that could cause this, and now it goes into REP as soon as I turn the key on. I have decided to just switch to a DBC in order to eliminate the frustration that I have previously went through with it. I currently am running a COS3, and would like to continue with it.
My questions are: Is there a complete write up for this (I couldn't find on on here)? Do I need to run a IAC (this is a summer only vehicle, and Idle is not my main concern)? Since I have a 4l80e swap, should I start with a tune that has a 4l80e or just do a segment swap? How can I determine if a tune is for a DBC? Will everything be OK since I had to repin a couple places for the 4l80e swap?