The honeymoon's over
Been getting 15mpg around town, not too bad until we left for Northern WI (from SW MI) on Fri. I pulled off the highway in downtown Chicago and had to stop for a traffic light. When I tried to go again, there was no response from the go pedal. Engine idled fine, but wouldn't respond. I shut the engine down and restarted and it worked fine after that until we got to our Cabin. For the remainder of the weekend we had intermittent problems with the pedal initially, and then it also started stalling. Always, we would turn the engine off and restart and it would go again. It eventually got pretty consistent Mon morning driving home. Everytime we hit the off ramp or slow for traffic, the pedal would quit working, and then the engine would stall. Until the last 200 miles after dusk, then no problems. Driving around town today no problems. Hwy mpg's hand calculated at 16.0 mpg at 70mph, 5 passengers and cargo. I'd expected a bit better.
Temps are a bit cooler now than they were over the weekend, not sure if that has anything to do with anything or not. I haven't checked for codes yet. The CEL is always on because of the EGR delete.

Welcome aboard - sorry can't help you with the pedal, BUT the stalling suggests it's NOT the pedal.. DID you buy the SG2 yet (or equiv) without being able to read PCM parameters it's going to be nearly impossible to help you out.
Your issue sounds like an IPR valve issue starting... Could be a variety of things, but first things I would would do is get a good tune put on the truck that stops talking to the EGR, then something to read codes and monitor. That will help your trouble-shooting a whole lot. The CEL is going to cause issues eventually by the ECM looking for an EGR valve that isn't there. If you call Gearhead or Innovative they can write you a nice tune for an EGR-deleted truck that will make it run better, I picked up close to 3 mpg on the highway, and you'll love the added power.
If you rule out IPR and can monitor / read codes...you can start digging down into FICM and other things. Could be air in the fuel system too somewhere... Most 6.0 issues are trivial with the fixes tried and true, but this one along with hot-start issue can be a bear to figure out.
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UPDATED SYNC CODES FOR SGII
FSN 07E02209CD 0462050906CD 3601 000100010000 FICM Sync (0=No, 1=Yes)
SYC 07E02209CD 0462050906CD 3701 000100010000 Camshaft & Crankshaft in sync (1 = in sync, 0 = not in sync)
V-REF
TXD=07E0221155
RXF=046245110655
RXD=3010
MTH=006433330000
Barometric Pressure (PSI)
TXD: 07E0221442
RXF: 046285140642
RXD: 3010
MTH: 001D00500000
NAM: BAR
Exhaust Back Pressure
TXD: 07E0221445
RXF: 046285140645
RXD: 3010
MTH: 001D00500000
NAM: EBP
KO=103 (15) LI=110 (16) HI=110 (16) OR=55 - 607 (8 -88) kPA (PSI)
BOOST (BST)
TXD= 07E0221440
RXF= 046285140640
RXD= 3010
MTH= 01220320****
NAME=Boost (PSI).
In order to get the proper boost value enter the MAP XGauge. Get a reading
from it with the key in the on position but the engine off. Based on the reading change
the last 4 digits of the MTH value that corresponds to your reading in the table to the
right.
12.6 - - FF82
12.5 - - FF83
12.4 - - FF84
12.3 - - FF85
12.2 - - FF86
12.1 - - FF87
12.0 - - FF88
11.9 - - FF89
11.8 - - FF8A
14.0 -- FF74
14.1 -- FF73
14.2 -- FF72
14.3 -- FF71
14.4 -- FF70
14.5 -- FF6F
14.6 -- FF6E
14.7 -- FF6D
14.8 -- FF6C
14.9 -- FF6B
15.0 -- FF6A
FICM Logic Power (Volts) (Should be 12 volts)
TXD: 07E02209CF
RXF: 0462450906CF
RXD: 3010
MTH: 006401000000
NAM: FLP
KO=12.0 LI=13.5 HI=13.5 OR=10.5-15.5
FICM Main Power (Volts) (Should be 47-48) Your FMP should never dip below 45. If it does, your FICM is toast and needs repaired or replaced.
TXD: 07E02209D0
RXF: 0462450906D0
RXD: 3010
MTH: 006401000000
NAM: FMP
KO=47 LI=47.5 HI=47.5 OR=40-52 (yes, that is what it says from Ford)
FICM Vehicle Power (Volts) (Should be 12 Volts, should not drop below 10.25 for more than 60 seconds, or 9.0 for 4 seconds. TSB 09-24-03)
TXD: 07E02209CE
RXF: 0462450906CE
RXD: 3010
MTH: 006401000000
NAM: FVP
KO=12.0 LI=14.0 HI=14.0 OR=10.5-15.5
Inj. Control Press. (ICP / HPOP)
TXD: 07E0221446
RXF: 046205140646
RXD: 3010
MTH: 003900640000
NAM: ICP
KO=0 LI=625.5 HI=1400-1450 OR=0-4045
ICP Voltage (Volts)
TXD: 07E02216AD
RXF: 0462451606AD
RXD: 3010
MTH: 004827100000
NAM: ICV
KO=0.2 LI=1.0 HI=1.8 OR=.15-4.7 Volts
IPR Duty Cycle
TXD: 07E0221434
RXF: 046285140634
RXD: 3008
MTH: 0DCA03E8000A
NAM: IPR %
KO=14.84 LI=24 HI=40.60 OR=0-50 %
MAP and Volts should already be in the gauge.
MAP Voltage (Volts)
TXD: 07E0220900
RXF: 046205090600
RXD: 3010
MTH: 000104000000
NAM: MPV
Note: This one seems a bit odd, but try it out and let me know if you need finer resolution. This one will go by whole numbers, but the range is something like +/- 32 Volts which seems weird for a sensor – they’re usually 0-5 volts
EP Volts (Volts)
TXD: 07E02216AE
RXF: 0462451606AE
RXD: 3010
MTH: 000100800000
NAM: EPV
Note: This one may have weird readings if the values get to high, let me know.
Glow Plug Coil Time (Seconds)
TXD: 07E0221450
RXF: 046205140650
RXD: 3010
MTH: 000100080000
NAM: GPT
Glow Plug Light On
TXD: 07E0221667
RXF: 046225160667
RXD: 3201
MTH: 000100010000
NAM: GPL
Glow Plug Lamp On Time (Seconds)
TXD: 07E0221451
RXF: 046205140651
RXD: 3010
MTH: 000100080000
NAM: GPT
MAF Voltage (volts)
TXD: 07E0221177
RXF: 046245110677
RXD: 3010
MTH: 000100250000
NAM: MFV
Until this morning that is. I didn't think I was going to get to work. Idle was erratic for the first 3 miles. Then I let it idle while I dropped the kids off. Next 2 miles ran rough with some surging and the gas pedal quit working everytime I came to a stop. Had to turn off, restart. I came to a stop light, that I couldn't get through. Gas pedal quit working when I stopped for it. Turn off, restart, put it back in gear 3 times before I got going again. It run erratic for the next couple of minutes, and then drove ok after that.
This morning after 10 hrs, before starting I took the following KOEO readings from my scangauge II. After getting to work I took LI and HI readings (which I assumed meant Low Idle and High Idle). I used 1250rpm for HI. I've been watching running readings this week, they seem within range - didn't get to pay attention too much this morning.
Name KOEO LI HI
FLP 11.5 13.5 13.5
FVP 11.5 14.0 14.0
ICP 55 790 820
IPR 14.8 17.9 20
EBP 14.3 18.3 19.6
BOO 0 0.8 2.1
EOT 78 186 186 (??? outside air temp 59* this morning)
*FWT 76 181 181
VGT 0 85 59
MAP 15.1 16.3










