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Old 02-07-2012, 01:57 PM
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SCT Livelink Data (What do you see)

I posted a thread earlier in the week about my truck losing power or its super slow when trying to pass cars.

I personally think my HPOP is giving out on me or I have some type of leak. I don't have any visible fluid leaks at all.

Like low gears partial throttle every runs good, but seems to be around 60% throttle the truck runs like crap, at WOT doesn't really move that well.

Anyone else have any suggestions.

I was recording
pedal position
ICP
ICP desired
rpm
MPH
etc..



In order to read this data you must have the SCT livelink program intalled.

Download my data file:
www.carnag3.com/07f250/2ndlog.csv

a few screen shots from a few of the runs:

Last edited by Carnag3; 02-07-2012 at 02:00 PM.
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Old 02-08-2012, 04:49 AM
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Here is a better part of it.

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Old 02-08-2012, 05:02 AM
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What year? ICP should range anywhere from 500psi to 4000psi. Those are voltage numbers?? What kind of pressure are you seeing at WOT?
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Old 02-08-2012, 05:04 AM
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Quote:
Originally Posted by a2elvis View Post
What year? ICP should range anywhere from 500psi to 4000psi. Those are voltage numbers?? What kind of pressure are you seeing at WOT?

07 F250
Actual and desired being read at MPa which I believe 1Mpa=150PSI Pressure 1800-2000. Been talking to Justin about what it could be. I'll prob. work on it this week if its the HPOP
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Old 02-08-2012, 05:20 AM
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Have yet to see on 05-newer HPOP fail... Doesnt mean it cant happen just highly unlikely. So at WOT ICP will not reach 3900psi? Sounds like dreaded HPOP STC fitting... Or maybe dummy plugs or standpipes, but most likely not a bad pump.
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Old 02-08-2012, 06:13 AM
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On mine with a bad pump it would produce like 3400 psi at 85% duty cycle at 3/4 throttle, as soon as you went wot icp would drop down to 2000 psi or so. Now that I've got a new pump, it runs like a new truck.
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Old 02-08-2012, 06:14 AM
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can you graph icp desired vs icp actual for a wot run?
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Old 02-08-2012, 06:24 AM
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Quote:
Originally Posted by awesomewrangler View Post
can you graph icp desired vs icp actual for a wot run?
I'll do it during lunch, I'll take my work laptop with me and do it.
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Old 02-08-2012, 04:46 PM
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Updates:
I changed the ICP sensor and did the following:

STOCK TUNE
I put my stock tune back on the truck and the ICP and ICP desire #'s were every where and I was able to read over 3500+ without any problems.

LOONEY WILD TUNE
Truck's ICP desired is 3000 but my ICP is only reading 1500 and if I'm lucky 1650-18000.

RACE TUNE (Don't know from who)
ICP # and ICP desired is every where fluctuating without any problems. I can see max desire and what not.

Anyone ever experience something similar?

STOCK


LOONEY WILD


RACE

Last edited by Carnag3; 02-08-2012 at 04:55 PM.
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Old 02-09-2012, 04:25 AM
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How does the truck run in stock? I would try and do your data logging in stock form. If I remember right certain tuners will change ICP readings. Higher ICP levels make more power, so the tuner will change the ICP reading so the PCM tries to make more ICP, hence more power. That's my understanding on it, but I'm no tuning guru so don't take that as 100% truth. Maybe someone can verify that. I do remember reading a thread on it though.

I always like to do my diagnosis in stock form. If ICP levels look good in stock then you might not have a high pressure oil issue.

Do a snapshot in stock. Try and take one of a long hard full throttle acceleration. Record ICP actual, ICP desired, IPR%, Boost/MAP, and throttle pedal %. Another thing to check out would be to manually check fuel pressure. I would also look at EBP readings just to make sure the sensor is reading right.

Have you ran any diagnostic tests on it? A KOER test will actuate the high pressure oil system and the air management system and check for issues.
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