truck stalls at low rpms with stage 1 injectors - Ford Powerstroke Diesel Forum
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  #1  
Old 04-05-2014, 04:12 PM
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Truck stalls at low rpms with stage 1 injectors

I have a 2001 7.3 f250
*8 inch lift on 20s
*4.56 gears
*stage 1 injectors
*air dog ll 165
*Tony wild man 6 position
Stock
Daily
Tow
Street
Extreme
High idle

I just had stage 1 injectors put in and the problem I am having is When using the truck in like daily mode ,when I come to a stop or have low rpms it shuts off sometimes. sometimes in park it will idle to 1000 and then fall to 500 and will repeat. It seems to run fine on the street setting and a good amount of smoke comes out so it's getting enough fuel, so im wondering if when it's on a less horse power tune that it is getting too much fuel. The last time I checked the fuel Pressure it was at 65 I believe. On the air dog I turned the fuel pressure screw a full turn since then and is it pretty much maxed out and I think the truck shuts off even more now. So the only thing I can think of is its getting to much fuel for the lesser horsepower tunes. I've also noticed since I've got the new injectors that the egt hits 1300+ degrees quick.

Last edited by jakethesnake1990; 04-06-2014 at 01:17 AM.
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  #2  
Old 04-06-2014, 05:20 AM
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Does anyone know around abouts the fuel pressure I should be at?

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Old 04-06-2014, 06:39 AM
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Fuel pressure should be about 60-70. No less than 45-50.

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Old 04-06-2014, 06:43 AM
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And you should have a regulator which controls how much fuel you have in the rails. I don't know much about the air dog, but regardless of fuel pressure, it shouldn't cut off the truck. You need a scan tool to check the icp and if it falls off. Could be a cps problem

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Old 04-06-2014, 09:09 AM
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What's a good scan tool to get

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Old 04-06-2014, 10:52 AM
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And the icp is new, was replaced less than 100 miles ago.

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Old 04-06-2014, 10:55 AM
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Unhook your chip. Sounds like too high of icp at idle is stalling your truck. Btw. AD suck on a 7.3.

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Old 04-06-2014, 01:00 PM
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Unplug it and then put it back in?

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Old 04-06-2014, 01:46 PM
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Just unplug it then drive it.

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Old 04-06-2014, 02:55 PM
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what was the point of me getting the tony wildman tunes then lol it didnt start doing it until I got the stage 1 injectors put in. but I sent my chip back out to get reburned for the stage 1 injectors so that shouldnt be the problem.
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