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Old 08-09-2012, 07:57 PM
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e fuel problems

i have tried searching and can't seem to find the issue my brother is having on here. background my brothers truck is a 96 f250 7.3 zf5spd banks hot housing banks chip. he just installed an air dog and a regulated return kit from driven diesel. the problem is that when he tries to adjust the fuel pressure with the regulator from the driven diesel kit it won't adjust. he can open it up and drop and the pressure but can't get it above 62psi and can only get this by adjusting the regulator on the air dog kit. shouldn't he be able to open the air dog up to run full flow and then adjust the driven to get desired fuel pressure. if anybody has any input or run into this would be a great help we have a pull tomorrow night really want to get it going if we can.
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Old 08-10-2012, 05:06 PM
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Not sure on the issue but the best area for fuel pressure is in the low 60's psi
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Old 08-10-2012, 06:22 PM
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The AirDog system isn't designed to run that high PSI.

I'd ditch the AirDog system for a dual filter base setup and a Super Duty pump and be done. The AirDog isn't designed to run on the OBS'.
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Old 08-10-2012, 07:28 PM
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You'll have to run the airdog reg all the way in then use your return reg to adjust psi. But what Iv heard air dogs don't last long at that psi. I'm currently running one on my 6.0l haven't had any issues yet but I'm keeping my eye on fuel psi tho. (currently running 61-65 psi)


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Old 08-10-2012, 08:21 PM
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thanks guys we've cranked the air dog all the way and can't adjust the fuel psi. with the reg return kit. we're now wondering if the air dog just can't pull enough fuel from the tank its a fuel volume issue.
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Old 08-11-2012, 05:06 AM
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Quote:
Originally Posted by dr.deere View Post
thanks guys we've cranked the air dog all the way and can't adjust the fuel psi. with the reg return kit. we're now wondering if the air dog just can't pull enough fuel from the tank its a fuel volume issue.
AirDog's are junk. Get yourself a Super Duty electric pump.
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Old 08-11-2012, 07:09 AM
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The air dog might be maxed out depending on the condition of the pump but 62 psi is plenty of fuel to get ya going.


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