How do you test fuel regulator on 05 LLY n What are specs ? Its all stock want to get it to run rite before i tune it . What is the best tuner to use dont want to change any parts just want a little more go its a daily driver n dont want to tear trans out any help would b great since this is my first diesel truck .
How do you check a FPR in a LLY?
- Thread starter Mossy D
- Start date
welcome to dd. what part of n.c are you from? you would need something like efi live to see what your f.p.r is doing, when mine was bad the rail pressure would fluctuate up and down quit a bit at idle. as far as tuners, ppe is great plug and play wise, efi live is king..
Is there anyone near me that can help me figure out whats wrong with my truck besides takin it to dealer ?
I used the search function and this was one of the first items....I'm sure there's more regarding this....Hope this helps
http://www.duramaxdiesels.com/forum/showthread.php?t=36950&highlight=Loping+idle
http://www.duramaxdiesels.com/forum/showthread.php?t=36950&highlight=Loping+idle
Watch your rail at idle if its all over swap it out there not hard to swap just did another one today
yeah u know when a fpr is out because it kinds makes the truck sound like it has a big cam at idle i have done two myself on lb7s they suck to change for me cuz i got big paws for hands but i can thing of worst things to work on lol
If u can log it or even watch comm vs actual (edge cts, tech 2, efi, ppe, etc) rail pressure and see actual fluctuating a lot, it could be indicative of a sticky fpr. Tty running a quart or two of atf, diesel kleen or power service through it. The ulsd fuel we now have to run somdtimes causes it to act up due to diff/lack of lubrication in the fuel. Found both of mine surging a few times an that always seemed to calm it down.