Fuel system Trouble Shooting?

Does anyone have a good set of daignostics to link too for an 2001 SD? I haven't been able to buy the manuals yet since I've only had the truck for 5-6 weeks.

I did a bunch of updates last week and this week, and driving it today (just got it running again this morning) it started acting really bad. The same feeling of trembling and jerking as a friends truck that we know is running low on fuel pressure in his common rail system.

I am really just starting to get familiar with these and don't know what procedure to do to check things. I do know that the fuel pressure is there from 60-70psi depending how I set the return regulator. I put back in the stock CPS I had and didn't seem to make any difference. Other than that, I don't know what to check next.

Reprogrammed the stock program into the computer, to no avail.

Please help and thanks in advance.

60-70 psi is perfect for the fuel pressure................what other mods have you done?


Tbar

Thanks for all the help guys! Not real impressed with this forum for the few posts that I've made at this point.

Maybe a bad weekend, but seems there are plenty of posts on some of the other helps topics. Do you need to know someone before anyone posts a reply?

Come to find out, the Injection Control Pressure Sensor (ICP) was bad. After researching and talking to many people in town including my local dealers on Saturday, then Saturday afternoon it fired right up and was hunting up and down when idling. (Had to be towed home on Friday due to not restarting when hot. Monitored the pressures when it started, and at idle it should be about 500psi, and it was nearly 1000 psi. Therefore, the computer was cutting fuel to the system and starving the engine.

Swapped it and then was able to get out of town for 2 days.

kbaxter said:

Thanks for all the help guys! Not real impressed with this forum for the few posts that I've made at this point.

Maybe a bad weekend, but seems there are plenty of posts on some of the other helps topics. Do you need to know someone before anyone posts a reply?

Come to find out, the Injection Control Pressure Sensor (ICP) was bad. After researching and talking to many people in town including my local dealers on Saturday, then Saturday afternoon it fired right up and was hunting up and down when idling. (Had to be towed home on Friday due to not restarting when hot. Monitored the pressures when it started, and at idle it should be about 500psi, and it was nearly 1000 psi. Therefore, the computer was cutting fuel to the system and starving the engine.

Swapped it and then was able to get out of town for 2 days.

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1. I'm glad you got it running.
2. We can do without the attitude. Sometimes we need more information, as in TBar's post.

None of us have magic wands or Magic 8-Balls calibrated to F-series trucks. Most of us aren't even in the same state as you, let alone the same town. I suppose you could always lay the computer on the engine so it can tell us what's wrong, but then you wouldn't need us..

just for what it's worth.

Sorry we did not meet your free internet diesel service tech standards, being Memorial Day weekend and all.

JLDickmon said:

1. I'm glad you got it running.

Click to expand...

Ditto that

2. We can do without the attitude.

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Again, ditto that. That sort of thing is why many of us are here and no longer at other sites. We try to be more cordial and polite, and less judgemental over here.

Memorial Day weekend was likely not a good time to be seeking help since many folks are gone from home for the holiday weekend. Myself, I was "off-line" from Thursday evening until tonight (Tuesday evening). Had I been home I would have gladly tried to help.

Welcome to SuperDutyDiesel and come back again. But please leave the attitude at the door.