Terrible Fuel Mileage after Injector Swap - Ford Powerstroke Diesel Forum
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post #1 of 8 Old 11-03-2012, 05:14 PM Thread Starter
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Terrible Fuel Mileage after Injector Swap

Truck got me 350 miles on both tanks? I've nearly reached 700 with both doing the same driving before. This is my first fuel economy test on the new injectors? No apparent leaks, no smoke, fuel pressure is at 70.

Any Input would be much appreciated
Thanks

95 7.3 ECLB, 2WD, E4OD, Rosewoods 1.5's, 6637 Riff Raff, 3" DP to 4" Exhaust, Gauges (EGT, Trans, Oil Pressure, Fuel Pressure), ScanGauge2, Firestone Air Suspension (rear), CCV Mod, efuel
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post #2 of 8 Old 11-07-2012, 06:27 PM Thread Starter
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Ended up hand jamming it at the.pump was only down 20 gallons. I think I averaged 17.X. Now that I've been driving it a few days, it has returned to normal. Wonder why it did that only one time?

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95 7.3 ECLB, 2WD, E4OD, Rosewoods 1.5's, 6637 Riff Raff, 3" DP to 4" Exhaust, Gauges (EGT, Trans, Oil Pressure, Fuel Pressure), ScanGauge2, Firestone Air Suspension (rear), CCV Mod, efuel
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post #3 of 8 Old 11-08-2012, 09:18 AM
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17+ is pretty good. New injectors ALWAYS comes with the lead foot MOD. In a couple weeks you'll see better MPGs until your area gets winterized.

+ Matt - Star Tiger +
-Bean's: 160/100 (FF Injectors), 2/ 6-POS chips (TW & Beans tunes), Overboost controller, E-Fuel
-BANKs: downpipe, full exhaust, gauges, test pipes, intercooler
-Irate: T-4 kit, IC pipes, 3" Irate Plenums, BASB Turbo
-Mag-Hytec trans. and pumpkin covers
-6637, CCV, IDM, 6.0 Fan, 49-Federal PCM swap, MAP line Mod
-370 Amp alt., 40k trans cooler, SRP1.1
-twin on-board air w/ 10 gal. tank

Re-pinning '97 Cali PCM to Federal
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post #4 of 8 Old 11-08-2012, 10:24 AM
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Quote:
Originally Posted by jeric View Post
Truck got me 350 miles on both tanks? I've nearly reached 700 with both doing the same driving before. This is my first fuel economy test on the new injectors? No apparent leaks, no smoke, fuel pressure is at 70.

Any Input would be much appreciated
Thanks
Don't feel bad I get 300 miles out of both tanks lol.

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post #5 of 8 Old 11-08-2012, 10:49 AM
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Yeah same here 300 - 350 MPG is it, man 700 what do you have on your truck that I don't?

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post #6 of 8 Old 11-08-2012, 11:35 AM
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I'm getting 240 a tank and I have twin 16's (I dont take it past the last 1/4) but like stated above 700 total?

+ Matt - Star Tiger +
-Bean's: 160/100 (FF Injectors), 2/ 6-POS chips (TW & Beans tunes), Overboost controller, E-Fuel
-BANKs: downpipe, full exhaust, gauges, test pipes, intercooler
-Irate: T-4 kit, IC pipes, 3" Irate Plenums, BASB Turbo
-Mag-Hytec trans. and pumpkin covers
-6637, CCV, IDM, 6.0 Fan, 49-Federal PCM swap, MAP line Mod
-370 Amp alt., 40k trans cooler, SRP1.1
-twin on-board air w/ 10 gal. tank

Re-pinning '97 Cali PCM to Federal
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post #7 of 8 Old 11-08-2012, 03:01 PM Thread Starter
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Yeah couldn't tell y'all why it gets so good I am rather light on the pedal. But usually only stop once from middle Tennessee to Minnesota. What was weird was this was the first time I used 2 stroke oil in the tanks, I wonder if this played a part?

95 7.3 ECLB, 2WD, E4OD, Rosewoods 1.5's, 6637 Riff Raff, 3" DP to 4" Exhaust, Gauges (EGT, Trans, Oil Pressure, Fuel Pressure), ScanGauge2, Firestone Air Suspension (rear), CCV Mod, efuel
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post #8 of 8 Old 11-08-2012, 04:17 PM
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The best I ever got from my 19 and my 16 was 500 miles, when I had 265/75/r16s. With 315/75/r16s I am not getting that good anymore.

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