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2003 5.9 cummins bogs at idle

1282 Views 8 Replies 2 Participants Last post by  Ureczky, 
Ureczky
Hi everyone I got a very hard situation I can't figure out but first I want to tell you everything that is done I own a 2003 dodge cummins 5.9 6 speed manual the motor was just rebuilt about 10,000k ago it has 60hp bd injectors and a fass fuel system with a superb turbo and all brand new when I put the motor in and am running a bully dog triple pup for a chip ok now that I think is close to everything.
So now when my truck is at a idle it seems like it bogs then ticks like ifi was starting in a high gear at a dead stop (the rpms do not move when it does this) but only does it for about 2 seconds then it goes back to normal but it contuesly does it so I did plug it in and at a shop and the fuel rail pressure drops off wen it happens then spikes right back up so I'm really wondering what the hell is going on please help me
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Ureczky
That's the sensor on the injector pump right?
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Ureczky
The thing is I don't have a gauge or a scanner to watch my pressure I'm in camp working up north 😩
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Ureczky
And I forgot to mention it did this awhile ago and then it went away and never did it untill now and it's been about a month
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Ureczky
Ok thanks for your help I'll update you
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Ureczky
Ok so i checked for some codes and I threw a p0553 and I gob this off the internet do you think this could be it....

Power steering pressure (PSP) sensor is installed to the power steering high-pressure tube and detects a power steering load. This sensor is a potentiometer which transforms the power steering load into output voltage, and emits the voltage signal to the Engine Control Module (ECM). The ECM controls the electric throttle control actuator and adjusts the throttle valve opening angle to increase the engine speed and adjusts the idle speed for the increased load.
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