Reply to thread

Message: [QUOTE="TooMuch03, post: 575326, member: 5993"] Sounds like how my truck was, sometimes still does act. When I was running and Atlas 80 FICM with my current and previous injectors, it would behave that way, until the truck warmed up or if it jumped up to about 1500 rpm. I have switched to a stock FICM and that got rid of a lot of it, but it will still occasionally do it, if its really cold, probably more to do with 150% nozzles. My theory is that when the ECM advances the fueling tables during cold operation, the more aggressive FICM tuning combines with the larger nozzles to over-advance, for lack of a better term, causing the truck to romp as you described it (I think that is a good way to describe it). When I added the FICM tune, I started having the same issue. Getting rid of the FICM tune got rid of most of it, I still may need an slightly adjusted FICM or ECM tune for cold starts with the larger nozzles. In your case, you switched from a 48v to 58v FICM, the greater voltage should advance the timing slightly, essentially making your FICM tune more aggressive. Just a theory of course. [/QUOTE]

Verification

Random media

1511MG-160

20110524164817

front_axle_swap11

7.3 XLT CREW CAB 4X4

IMAG0310

DSCN3020

IMG_20140101_211310_823

95_Bronco_conversion_pics_007

32D740B3-47AA-4D2F-9127-6476D007653B

Target practice

trucks3

Latest posts

OEM LED sport headlights
- Latest: ghohouston
- Today at 10:26 PM
2017+ 6.7 Aluminum Super Duty
Gauge cluster face plates
- Latest: crash86
- Yesterday at 5:15 PM
6.0 Aftermarket
B
6.4 head gasket job cost
- Latest: bowhunter
- Yesterday at 2:07 PM
6.4 Aftermarket
S
6R140 surging issue
- Latest: Smokin 6.0
- Yesterday at 12:11 AM
6.7 Tech & FAQ
Won’t start
- Latest: psduser1
- Wednesday at 11:33 AM
7.3 Tech & FAQ

Members online

Gregoryjak

Total: 311 (members: 1, guests: 310)

Top