ColdBlackWind
Well-Known Member
I did. If memory serves i went through the exercise to check any fuel bypassing.
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CAT 299D Fuel leakage code...
- Thread starter Makers Acres
- Start date
Nige
Senior Member
The fuel pressure reading from the rail during cranking would be interesting to see.
I. Et you do an event logging or live data display when cranking, you'll see a desired fuel pressure and then the actual fuel pressure. That's how you know if you're meeting what's expected.
jrock3
Member
I have that data in a waveform if interested.
Nige
Senior Member
All it needs is a screenshot from ET showing the Desired and Actual Injection Actuation Pressure values during cranking. That tells you everything you need to know. If the AIAP never reaches the DIAP there will be no smoke from the chimney.
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jrock3
Member
Nige,
I have the same code, ET says it's only happened twice, and many hours ago. I ended up replacing the fuel rail limiter, and all four of the injectors were leaking really bad on the overflow line. I didn't really smell fuel in the oil. But with my basic ET testing to me it seems like it's not clogged, or in bad condition, however I failed to get the ash reading and I will get those. But my question (1 of 2) 1. If the (dpf) in good condition (cleaned) does it really need to be removed and cleaned? (It also has the 3000 hours required cleaning notice on the display)
2. In my case would you consider it safe to do the reset for the 523602-0 code I have?
Below are some notes from my testing if you want to read them:
Cat ET shows soot values at 8 g / 4 g / 9 g. SIS says regen is requested when any one reaches 21 g, so soot load is below the regen threshold.
DPF differential pressure is about 0.13–0.50 psi, below the SIS trigger range of 0.9–1.5 psi.
Temps rose to roughly 400–420°F, but Cat ET still shows Regeneration Not Needed and Regeneration Not Active.
No active 3701-15, 3701-16, or 3701-0 codes, so it is not showing Parked Regen Required, Manual Regen Required, or DPF Service Required.
Nige
Senior Member
Question: Is the 523602-0 Code Active or Logged.?
I would say active. I was trying to see if it was safe to move to logged (reset) to see if it came back or not. Based on what I could see in ET, it hasn't tried to do a regen in a long time, since before this, get your head issues from what I could tell according to what the old owner told me, it's third-party info,, he said she said...,
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Nige
Senior Member
From the screen shot definitely Active. See my earlier comments regarding how to turn it into a Logged Event.
Yes I saw that, I was just trying to confirm it's ok in my case. There is conflicting messages between the sis troubleshooting doc and Et, in the sis doc it sounds like it's ok to reset it, but in et when you click on reset it states "do not reset unless the dpf has been cleaned"
Nige
Senior Member
You need one of the TIER 4 experts to advise you on that. What % soot loading is the DPF showing right now.?
This summary data is from a 20-30 minute run.
DPF differential pressure: about 0.13–0.50 psi.
SIS DPF differential pressure regen trigger range: 0.9–1.5 psi.
DPF soot loading: about 39–42%.
DPF soot mass: 8 g.
DPF soot mass #1: 4 g.
DPF soot mass #2: 9 g.
DPF regen level: Regeneration Not Needed.
DPF regen status: Regeneration Not Active.
DPF regen progress: 0%.
Active regen inhibited: mostly Not Inhibited, with a brief Inhibited reading near the end.
DOC intake temp: up to about 420°F.
DPF intake temp: up to about 420°F.
DPF outlet temp: up to about 400–420°F
DPF differential pressure: about 0.13–0.50 psi.
SIS DPF differential pressure regen trigger range: 0.9–1.5 psi.
DPF soot loading: about 39–42%.
DPF soot mass: 8 g.
DPF soot mass #1: 4 g.
DPF soot mass #2: 9 g.
DPF regen level: Regeneration Not Needed.
DPF regen status: Regeneration Not Active.
DPF regen progress: 0%.
Active regen inhibited: mostly Not Inhibited, with a brief Inhibited reading near the end.
DOC intake temp: up to about 420°F.
DPF intake temp: up to about 420°F.
DPF outlet temp: up to about 400–420°F
Chrisso
Senior Member
If the latest software was in your machine ECM and display monitor, the 3000 hour "DPF requires cleaning" service reminder wouldn't be there. If you had the latest version of the Operation & Maintenance Manual, you'll see the DPF Cleaning has moved from the 3000hr section to the "As Required" section. This is because plenty of DPF's go more than 3000 hours. Plenty go less too, lots of factors involved.
Will the old software trigger the 523602-0 Events automatically at 3000 hours? I don't know, but it might.
If you've had fuel dilution issues then I would say your engine would benefit from a DPF clean anyway.
No. Not unless you've had the DPF cleaned. It screws up the regen logic that controls burns.
So in a nutshell, you need software. After that, if you still get 523602 events, you need the DPF cleaned and someone with ET on a laptop to run a soot load reset. Good luck!
Makers Acres
Senior Member
What are you using to read codes? Did you buy the actual CAT software and dongle or go a different path? You can message me directly if you don't want to answer in an open forum.
Makers Acres
Senior Member
I still am chasing the ghost in the machine. Drained and fully cleaned the tank again, replaced all hoses and fittings on the tank. Replaced all injectors. Ran great for about a 15 hours or about a month of my use. It started giving the errors again. A couple days ago, I used the machine and I ran it for about 3 hours with zero issues. Then I went to park the machine and it constantly was throwing the errors at low idle. Restarted the machine and the error popped up continuously. This has happened a number of times now where it will work for a few hours and then all I get is error messages. So frustrating.