u ever figure out what was wrong? im havin kinda of the same problem

 

Might be a sticking injector, in your sig it says water/meth but not on yet, did you ever get that installed yet if so is it running when you are having this problem, if so might be injecting to much in right at first. Also your sig says you have some nozzles that havent been put in yet either, if you did put them in then, might might be something to do with the problem if, not this would be a good time to do so, but I would send them off and get them checked out and tested before you put them back in.

 

im also having similar problems...i scanned it and p0541 code came up. my fuel mileage has gone way down and it will barely pull a boat up a grade. cuts out when i get on it but if i slowly excelerate im ok...what about the iat sensor...would that cause this? any help would be great

 

When I lost MPG it took a couple weeks for the motor to finally fail turned out I melted a piston! Cause a bad injector so i would pull them asap and then inspect your pistons with a micro scope!!

 

It turned out to be a lose banjo bolttighted it up and now shes fine. thanks for all the input guys

 

OMG you have the luck so did the puddle of fuel give it away??

 

i have a set of DDP 90hp injectors, had to put hole stick in, not just the nozzles but i changed out my rail pressure sensor and it hasnt acted up at all, it was startin to shut off its self and strugglen to stay running, kept throwin code for that, messed with it some and change that one sensor and fixed it, so far so good

 

boost leak maybe. check your boots, intake gasket, intercooler, pipes

guess you found it haha