In your sig you have the mp8 listed. Wicked was referring to the fact that you use one or the other. If your not using the mp8 then disconnect it. is interferes with rp and boost signals.
Drop your LLT to 15 or 17 and tune from there. High LLT consumes more fuel and the rattle you getting is because too much LLT and not enough fuel in the form of duration. BUT if you increase duration you will get more smoke. Try this and drive it for a while. You may lose some throttle response.
BTW, what TQ # are you running? Very important.
LLT: 15
LLR: 1
LLD keep at 18 for now.
TQ:1
Let me know how that runs.
If you want better throttle response, try TQ 2 but you will have to compensate by lowering LLD.
Do you have an RP gauge and which one?
raychem, I wish the rattle was old parts in my case, I have brand new bodies on brand new nozzles and sound like a diamond back.
Question, how old are your injectors?
The reason I ask is that when 1.5 was released about 2-3 months ago. I had timing rattle no matter what setting I used. Part of the reason I did not post for much of the 1.5a release. Now my injector bodies had about 60k on them but I sent them to Don to be checked out. It turned out to be that I had 5 bad solenoids and the 6th one had been replaced about 3 months earlier. Since I have had these new injector solenoids install, no where near any rattle and the smallest adjustments in duration make a difference(usually one number increments). Just food for thought since I experienced a similar situation too.
Jan 1 of 2010, so less then 2 years. about 20,000 miles give or take a few thousand. For a while the rail pressure spikes and rail hangs could of taken a tole on things. I'm thinking of taking them out this winter and sent to xergy to have a look at.
Seee, I can drive rattle free..... If I don't slip the converter to much. So, like for example.
Unlocked in 3rd gear doing 40mph.. I forgot the rpm, but lets say 1800rpm.. to accelerate, quickly you give enough throttle the motor will spin to 2500, hold and the converter will pull the truck faster, the initial throttle movement makes all kinds of rattling.
Do the same thing locked, it's smooth and quiet.
so, I put the stock software on.... lol
omg, nearly full throttle to keep up with traffic! ha! I dunno how stock trucks can do this!
Any rattles I can get outa the motor is accomplied with smoke.
lld 16 llr 20 LLT 22