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my first AE logging run

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Old 09-09-2009, 02:18 PM
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my first AE logging run

I had the extra time today to make my first logging run using AutoEnginuity. With all the HPOP threads lately I wanted to know where I was at and if I should consider upgrading.

I self tuned my Subaru so am fairly comfortable with a laptop in the vehicle. With that said I have a few nits to pick with the AE logger. I was able to get the data I wanted but only after making 3 runs. The first two I went out on the highway to go back to back between 80E and 120R. I was using the pause feature of the logger, but when I got home I found the file did not append the data. I only had the first little bit of idle test in my driveway. I played with it more but could not figure out how to get multiple runs in the same log file, without running the logger constantly (no pausing or stopping). So I went back out and got a short single run using 80E. Since it trips the HPOP code I figured it was a good enough test.

The logger outputs in a .CSV format, which I opened with and converted to an Excel spreadsheet. I see the forum allows decently sized .PDF file uploads, so I changed the file extension from .XLS to .PDF and uploaded the log, in case others would like to see it. Just download and change the file extension back to .XLS to view in Excel or OpenOffice. The multiple columns for time were kind of distracting at first; I don't know how useful the ultra-precise timing between each selected sensor can be. But I got a pretty good little set of data.

I followed these directions to create the log:

What to log in AE:

ICP
ICP duty cycle
Fuel injector pulse width
RPM
oil temp

HPOP performance test
How good or bad is your HPOP? There are 2 procedures to measure the oil pump's performance.

If you can maintain 2800+ psi of ICP, then any injector 250cc's and under will perform exceptionally well.

If you can maintain 2400psi then that's not bad, not great either.

2200psi is mediocre, and full performance from any injector will not be achieved with that HPOP, though power WILL go up with nearly any injector, driveability (excessive smoke) might be an issue.

If you cannot maintain 1900psi, you might seriously consider a new or aftermarket HPOP. Nearly any larger injector is going to make the truck feel sluggish, and smoke excessively.

Procedure 1:

If you have access to a scantool, hook it up to the trucks OBD connector, and go to the "datastream"...scroll through the sensor values, until you find ICP (or injection control pressure)...this is your HPOP's "oil pressure".

***NOTE*** If you are running any kind of "box" such as the "Edge EZ" or the "Banks Six Gun" you either have to remove the aftermarket jumper harness/plug at the ICP sensor, and reconnect the factory harness by itself. If you are running a home made "10k mod", etc...which plugs/taps into the ICP sensor wires (or connector pins), you will have to remove it as well, or proceed with getting the parts together to run the mechanical gauge, as the scantool will not receive accurate data from the ICP sensor if its signal is being modified from any one of thes "ICP foolers".

To test the HPOP's output, you will be looking on the scantool for the line labeled "ICP" and it's units should be in psi not volts. Some scantools, AE is one. measure ICP in kPa (kilopascals) which you can convert to psi after you take your measurement in kPa.

1kpa = 0.145psi. kPa times .145 = psi. As an example 19,310kPa multiplied by 0.145 = 2800 psi

Put your chip in its' highest setting, and go out on the interstate (while having someone watch the ICP value on the datastream) and start at about 60mph...

FLOOR the pedal, and stay in it, 100% from ~60-90mph...what you're likely to see (on the scantool) is that the ICP will spike up rather quickly, to 2800-3000psi or so, and then the longer you stay in the pedal...the ICP will slowly drop and drop and drop...the ICP will eventually stabilize (stop dropping).

WHERE the ICP levels off can be some indication as to the condition of your HPOP.

If your truck can maintain 2800+psi then you are one of the FEW folks that have a terrific HPOP.

I would estimate that 90% of the Power Strokes can only maintain ~2200(+/- 200)psi of HPOP pressure, or ICP...5% are above 2600, the other 5% are below 1900psi...
Basically my ICP topped out at 2444.16 under load and then leveled off in the low 2000's before I let off the throttle. So it sounds like I am right on the low side of "normal".

Does anybody know what ICP the 80E tune is calling for, and how big of a difference between requested and actual pressure there has to be to trigger the CEL?

What do you think of my results, and what would you do if you were me?
 
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  #2  
Old 09-09-2009, 02:22 PM
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I guess I can try to post the data from the log too:

Code:
Time	 Injector Control Pressure (PSI) [0.00 - 5076.32]	 Time	 Injector Ctrl Pres DC (%) [0.00 - 100.00]	 Time	 Fuel Injector Pulse Width (ms) [0.00 - 524.28]	 Time	 Engine RPM (RPM) [0.0 - 8000.0]	 Time	 Engine Oil Temperature Input (F) [-40.00 - 1139.63]	 Time	 Vehicle Speed (MPH) [0 - 131]

 01:08:57.484	2418.14	  01:08:57.718	27.34	  01:08:57.953	1.78	  01:08:58.187	1754.4	  01:08:58.437	187.7	  01:08:58.671	45
 01:08:58.906	972.91	  01:08:59.156	16.41	  01:08:59.390	1.8	  01:08:59.625	1769.4	  01:08:59.859	187.7	  01:09:00.093	46
 01:09:00.390	2541.45	  01:09:00.625	38.28	  01:09:00.859	2.94	  01:09:01.093	1982.9	  01:09:01.328	187.7	  01:09:01.562	52
 01:09:01.859	2247.88	  01:09:02.093	27.73	  01:09:02.312	2.28	  01:09:02.546	1493.2	  01:09:02.796	188.15	  01:09:03.031	54
 01:09:03.328	894.85	  01:09:03.562	14.06	  01:09:03.796	0.6	  01:09:04.031	1517.9	  01:09:04.265	188.15	  01:09:04.500	56
 01:09:04.796	1099.62	  01:09:05.031	28.12	  01:09:05.281	2.38	  01:09:05.515	1577.9	  01:09:05.750	188.15	  01:09:05.984	58

 01:09:06.265	1743.89	  01:09:06.500	28.12	  01:09:06.718	2.17	  01:09:06.953	1680.7	  01:09:07.187	188.15	  01:09:07.421	60
 01:09:07.703	1810.64	  01:09:07.937	27.34	  01:09:08.171	2.33	  01:09:08.406	1701.9	  01:09:08.625	187.7	  01:09:08.859	62
 01:09:09.156	2444.16	  01:09:09.375	50.39	  01:09:09.609	4.98	  01:09:09.859	2647.9	  01:09:10.109	188.15	  01:09:10.343	68
 01:09:10.625	2153.42	  01:09:10.859	54.29	  01:09:11.093	4.82	  01:09:11.328	2787.9	  01:09:11.562	188.15	  01:09:11.796	73
 01:09:12.078	2049.34	  01:09:12.312	58.98	  01:09:12.531	4.71	  01:09:12.765	2943.1	  01:09:13.000	188.6	  01:09:13.234	81
 01:09:13.515	2082.71	  01:09:13.750	63.28	  01:09:13.968	4.81	  01:09:14.203	2383.6	  01:09:14.437	189.05	  01:09:14.656	82
 01:09:14.937	2006.35	  01:09:15.171	68.35	  01:09:15.406	4.8	  01:09:15.640	2340.6	  01:09:15.843	189.5	  01:09:16.078	85
 01:09:16.359	2012.01	  01:09:16.593	73.43	  01:09:16.828	4.81	  01:09:17.062	2436.4	  01:09:17.296	189.5	  01:09:17.531	88
 01:09:17.812	2053.3	  01:09:18.046	78.51	  01:09:18.281	4.8	  01:09:18.515	2501.4	  01:09:18.750	189.95	  01:09:18.968	91

 01:09:19.234	2016.53	  01:09:19.468	75	  01:09:19.718	0.6	  01:09:19.953	2466.9	  01:09:20.187	189.95	  01:09:20.421	85
 01:09:20.734	3578.28	  01:09:20.968	37.11	  01:09:21.203	0.6	  01:09:21.437	2077.4	  01:09:21.656	190.85	  01:09:21.890	71
 01:09:22.187	2397.21	  01:09:22.421	28.9	  01:09:22.656	0.6	  01:09:22.890	1731.2	  01:09:23.140	190.85	  01:09:23.359	58
 01:09:23.640	1685.06	  01:09:23.859	22.65	  01:09:24.093	0.6	  01:09:24.328	1426.2	  01:09:24.562	190.85	  01:09:24.796	50
 01:09:25.078	1302.12	  01:09:25.312	19.53	  01:09:25.562	0.6	  01:09:25.796	1347.2	  01:09:26.031	190.85	  01:09:26.250	48
 
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Old 09-09-2009, 02:49 PM
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You can convert that pdf into a jpg and upload it to a photo site. Might make it easier to read.

What is with the 3578 psi number??? Must be some spike...

We need to see a full WOT run!!!
 
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Old 09-09-2009, 02:59 PM
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Originally Posted by Layson
You can convert that pdf into a jpg and upload it to a photo site. Might make it easier to read.

What is with the 3578 psi number??? Must be some spike...

We need to see a full WOT run!!!
It's not a real .PDF I just changed the file extension so I could upload the file here. There is no image to see. It would be nice if they allowed other file formats on the forum.

The 3578 was after I let off, must have been a spike like you say. Vehicle speed is the last column, and I put a blank line before and after the actual WOT part of the data to help separate it.

This is my very first logging attempt, more to come for sure.
 
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Old 09-09-2009, 03:04 PM
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If that is at WOT then your ICP is low. Should be higher then that. I also like to see the Accelerator pedal position too... that way I know when my foot is to the floor..LOL

Oil temps look good! Pulse width looks higher then what I have seen... but I guess that could vary by tuner...
 
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Old 09-09-2009, 03:09 PM
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Originally Posted by Layson
If that is at WOT then your ICP is low. Should be higher then that. I also like to see the Accelerator pedal position too... that way I know when my foot is to the floor..LOL

Oil temps look good! Pulse width looks higher then what I have seen... but I guess that could vary by tuner...
The separated and bolded part is the WOT run from 60 to 90 mph. DP Tuner 80E tune. I kept the parameters to a minimum to help with logger resolution (there is not a ton of data to see for an 11 second run).

Thanks for your feedback! I have been watching the Adrenaline threads closely.
 
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Old 09-09-2009, 03:13 PM
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Yeah your duty cycle seems high for that ICP .... At WOT I have seen on trucks about 50% duty cycle. That is at 3000 psi. Either it is your pump or an IPR issue...

What is your duty cycle at idle?
 
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Old 09-09-2009, 03:20 PM
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Subscribing
 
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Old 09-09-2009, 03:49 PM
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Originally Posted by Layson
Yeah your duty cycle seems high for that ICP .... At WOT I have seen on trucks about 50% duty cycle. That is at 3000 psi. Either it is your pump or an IPR issue...

What is your duty cycle at idle?
The truck seems to run fine, really just wanted to know if it's worth upgrading or not. How much am I leaving on the table?

At idle the ICP is 470-480, ICP duty cycle is 10.55, and the fuel injector pulse width is 2.6 - 2.8.
 
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Old 09-09-2009, 03:55 PM
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Justin,

I'll PM you my e-maill address and change the data file to a graph if you like.
 
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Old 09-09-2009, 03:56 PM
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Originally Posted by Justin03PSD
The truck seems to run fine, really just wanted to know if it's worth upgrading or not. How much am I leaving on the table?

At idle the ICP is 470-480, ICP duty cycle is 10.55, and the fuel injector pulse width is 2.6 - 2.8.

I would say there is some left on the table, that can help your fuel mileage too... I am sure Jody's tuing calls for more the 2400 icp... but that just may be the 80E tune?? You might want to do a run in a hotter setting and that will tell you for sure. It might be a good idea to email jody your files to look at. He can tell you where you should be at.

Your duty cycle and ICP seem pretty normal for idle... but then again that has alot to do with tuning.
 
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Old 09-09-2009, 03:59 PM
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Originally Posted by Justin03PSD
The truck seems to run fine, really just wanted to know if it's worth upgrading or not. How much am I leaving on the table?

At idle the ICP is 470-480, ICP duty cycle is 10.55, and the fuel injector pulse width is 2.6 - 2.8.
It's hard for me to tell by just looking at the nnumerical values, graph is easier. But by the looks of it you seem to be in the same situation that most are in, add a chip - stock HPOP has a hard time keep up with the demand. IIRC, CEL light comes on after the ICP drops @ 400 below requested value.
 
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Old 09-09-2009, 04:26 PM
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Thanks for the replies fellas, email sent.
 
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Old 09-09-2009, 04:51 PM
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here's a start.......

 
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Old 09-09-2009, 04:59 PM
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Good first time datalogging, my first time was alot worse and it took me a few times to get it right. Like LAyson said, next time do a WOT run, I find starting at 70 mph then punching it helps to prevent the truck from downshifting. The less items you try to datalog the smoother the data.
 


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