@Mista Jey would be your best chance of getting help to make a post on the topic yourself so your question is more directed. torque pro is a nice app but i dont recommend using it as your only source of diagnostics. it is highly inaccurate on alot of things but its handy as code reader and keeping an eye things looking for big spikes and dips. using a scanner designed to actually check the timing properly and having the rpms correct for 0 degrees timing. at that point then yes your timing is +/- 2 degrees. also this post was originally based in reference to the 5.7 not the big engine. there is a chance to have the timing a smidge farther and MAYBE not flagging the p1345 under most circumstances. it also possible to havr p1345 and have the truck still run flawlessly.