One of Everything

[Cal Naughton Jr]

New to the diesel world, just trying to help a buddy. Another day at the zoo.

2005 F350 6.0 Powerstroke:
New KC stage 1 turbo 10 blade
New OEM injectors
HPOP "replaced right before I bought it"
Sinister Diesel FICM, increased voltage/stock map
ARP head studs
Full exhaust
Physical EGR delete, not yet in the tune
Hot air intake

He thought it was running a stock tune, but it turns out he had an SCT tuner that STB and a random tune must've stuck. It's hotter than stock but leaves a lot on the table. Definitely a few things going on. The MAP is dropping out at higher readings even though the transfer function has been adjusted. However, my main concern is the low ICP and HPOP pressure at any mild load. It looks like the injectors are hating life as they try to compensate.

This was a spur of the moment log so many PIDs were missed. I'll be adding the following for the next log, let me know if there's anything I missed.

Fuel Pressure
MAP sensor voltage
Correct MAF sensor
Internal boost gauge
Delivered fuel
o2 sensor/ AFR
AFR commanded
Exhaust temp
EGR
Accurate trans current gear
Cylinder airmass
Injector flow rate
LTFT/STFT

Josh_Stock.hpl
Josh_Powerstroke.hpt
Josh.JPG

[projectlnf]

Haven?t looked at the tune but judging by the log picture I bet it?s icp spoofedz

Which means it ?tricks? the ecm into thinking it?s less pressure but in reality it?s running a higher pressure.

What that does is it will allow the FICM to deliver those higher PW so you gain more power. It?s an SCT thing since SCT doesn?t have access to the ficm.

As for the MAP dropping out, mine does the same thing. Mine is an 03 but I haven?t seen any adverse affects from it. There have been people that have upgraded to a higher reading sensor and scaled it.

[Cal Naughton Jr]

Appreciate the info, your guide has been a huge help.

I've read about SCT's spoofing strategies, but the low ICR voltage had me double checking. I also found a stock and "SCT 65HP TOW" tune floating around the forums, none of which line up with the IPR transfer functions in this tune.

I'll try the tables from the stock tune to see if it clears up. Assuming all is well, do you still stick to 130mg of fuel on stock injectors or would it be worth matching SCT's 150mg?

[projectlnf]

Screenshot (113).png

Right here is where the spoofing happens.

What i would do is get rid of the spoofing and tune your FICM. you can really open it up with FICM tuning.

For a basic FICM tune take the bottom right 3 values and put them to 2.0ms or 2.5ms obviously the more PW the the longer the injector stay open which in return you will get more fuel BUT you need to increase your ICP so it can atomize the fuel.

A good FICM tune is using a 2003 FICM file to base your FICM tune on. It is (i have heard) similar to an Atlas 40 tune. I have a 2003 so i cant do that but i have had success with making more power in the 05-07 trucks by doing this.

Screenshot (114).png

In my opinion this is JUNK.. i hate the CANNED SCT tunes.. we can fix this though

Screenshot (115).png

Lower these values if you want your fan to come on sooner. When i ran a mechanical fan i had these set to come on at 210 but I tow my camper alot with my excursion so i wanted it to stay cool. Now i run 4 Electric fans and it has done WAY better than the Mechanical fan.