AE class is in session!
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Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
WOT - Wide Open Throttle (Pedal and Matt are makin' bacon).
My transmission typically reads about 70 degrees F above the ambient temperature while cruising on the flat. 70 degrees Celsius in the summer works out to 160 degrees F, which would be correct on a 90-degree F day.
MAP - Manifold Air Pressure gives you the pressure in relation to a vacuum (outside the space station). It will read close to 14 PSI, depending on your altitude... so you will get a lower reading in Denver than you do in Death Valley. A variation of this PID is MAP PSI indicated or gauge - this shows the boost above the ambient air pressure. The ambient air pressure is measured by BARO (an air pressure sensor in the PCM). It is important to make sure your MAP PSI (absolute) and Exhaust Back Pressure PSI (absolute) match up (+/- 0.2 PSI) with the KOEO.
I know how you feel about learning how much we don't know what goes on in these rigs - there is a lot of nuance to pay attention to when troubleshooting.
My transmission typically reads about 70 degrees F above the ambient temperature while cruising on the flat. 70 degrees Celsius in the summer works out to 160 degrees F, which would be correct on a 90-degree F day.
MAP - Manifold Air Pressure gives you the pressure in relation to a vacuum (outside the space station). It will read close to 14 PSI, depending on your altitude... so you will get a lower reading in Denver than you do in Death Valley. A variation of this PID is MAP PSI indicated or gauge - this shows the boost above the ambient air pressure. The ambient air pressure is measured by BARO (an air pressure sensor in the PCM). It is important to make sure your MAP PSI (absolute) and Exhaust Back Pressure PSI (absolute) match up (+/- 0.2 PSI) with the KOEO.
I know how you feel about learning how much we don't know what goes on in these rigs - there is a lot of nuance to pay attention to when troubleshooting.
Senior User
Joined: Dec 2012
Posts: 373
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From: Arlington, Texas
So, the Baldwin BF1212 that came with the SD Hutch kit probably isn't a good idea? Should I can mine and install a smaller filter like that?
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Joined: Jan 2011
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From: Puget Sound
I don't like the small one... it was just a quick fix to get my fuel pressure back up when my foot falls more than half way to the floor. I will be getting a Racor when my work schedule falls out of warp. That being said, the small one works great... but the two fuel lines are different sizes and you need to seal the larger line real good to prevent introducing air.
Posting Guru
Joined: Oct 2012
Posts: 1,910
Likes: 2
From: Hat Creek Ca
Tugly
I was considering the Racor - or the clone I saw on E-bay at about half the cost. They do come in different flow ratings up to like 20 GPM IIRC. I certainly hope that that would be enough!. I was just wondering if the water separation function would work better on the discharge side of the pump though. I realize that that leaves the pump without a pre-filter but would a large enough in-line eliminate any excess restriction?
I was considering the Racor - or the clone I saw on E-bay at about half the cost. They do come in different flow ratings up to like 20 GPM IIRC. I certainly hope that that would be enough!. I was just wondering if the water separation function would work better on the discharge side of the pump though. I realize that that leaves the pump without a pre-filter but would a large enough in-line eliminate any excess restriction?
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Joined: Mar 2012
Posts: 534
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From: Quaker Hill
Rich, just a couple questions from I have after reading waaaayyy back on page 9 I think.
'If you are looking at your truck with a scan tool, expect 1-3 PSI differential between EPB and MAP while driving "sanely". You'll see between 6 - 9 or even 10 PSI differential at high load... like WOT at high speed, pulling a grade, a headwind, or trying to break something at a tractor pull. If your EBPV is on because of a decel tune, expect really big pounds for backpressure readings (upwards of 40 PSI indicated) and bupkis for boost (like 1 or 2 PSI indicated).'
Based on subtracting KOEO reading of MAP from a WOT run, I believe I have just over 18 psi of boost, which I guess should be a good number. However, my EBP was 17 psi higher than my MAP reading. Is this bad?
Finally, is there a way to play a session back without having AE hooked up? I can't seem to figure that out... Thanks for taking the time to teach us!
'If you are looking at your truck with a scan tool, expect 1-3 PSI differential between EPB and MAP while driving "sanely". You'll see between 6 - 9 or even 10 PSI differential at high load... like WOT at high speed, pulling a grade, a headwind, or trying to break something at a tractor pull. If your EBPV is on because of a decel tune, expect really big pounds for backpressure readings (upwards of 40 PSI indicated) and bupkis for boost (like 1 or 2 PSI indicated).'
Based on subtracting KOEO reading of MAP from a WOT run, I believe I have just over 18 psi of boost, which I guess should be a good number. However, my EBP was 17 psi higher than my MAP reading. Is this bad?
Finally, is there a way to play a session back without having AE hooked up? I can't seem to figure that out... Thanks for taking the time to teach us!
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Senior User
Joined: Dec 2012
Posts: 373
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From: Arlington, Texas
My AE got here a couple of hours ago!!
I have plenty to figure out and cant wait to finally get my truck running like its supposed to run. I am not that great with the computers, but this thread should help me out quite a bit. This is a brand new laptop, so I need to start by figuring out how to get AE to work with Windows 8! Thanks for all the great information guys!
I have plenty to figure out and cant wait to finally get my truck running like its supposed to run. I am not that great with the computers, but this thread should help me out quite a bit. This is a brand new laptop, so I need to start by figuring out how to get AE to work with Windows 8! Thanks for all the great information guys!
I bought it from a fellow here on the forums and it had the wrong CD in it. Oops
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Hotshot
Joined: Jan 2011
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From: Puget Sound
...They do come in different flow ratings up to like 20 GPM IIRC... I was just wondering if the water separation function would work better on the discharge side of the pump though. I realize that that leaves the pump without a pre-filter but would a large enough in-line eliminate any excess restriction?
Filtration before the pump gets way more tricky - they are typically not rated for flow in a vacuum, but I can tell you it's far less than it is with pressure. This is one of those things where you should find the flow data, duplicate what works for other people, or avoid what doesn't work for the 7.3L.
Not everybody has fuel gauges and some will say "Look at my pre-pump filter, isn't it cool?"... just like I did. Once I got that gauge in there, "cool" was more like "costly".
No screen before pump = clogged pump instead of clogged screen. What's cheaper and easier to replace?
As for the water separator in addition to the OEM fuel filter, I'd have to do a search to find anybody who suffered damage from WIF on a properly-maintained OEM fuel filtration system.
Rich, just a couple questions from I have after reading waaaayyy back on page 9 I think.
'If you are looking at your truck with a scan tool, expect 1-3 PSI differential between EPB and MAP while driving "sanely". You'll see between 6 - 9 or even 10 PSI differential at high load... like WOT at high speed, pulling a grade, a headwind, or trying to break something at a tractor pull. If your EBPV is on because of a decel tune, expect really big pounds for backpressure readings (upwards of 40 PSI indicated) and bupkis for boost (like 1 or 2 PSI indicated).'
Based on subtracting KOEO reading of MAP from a WOT run, I believe I have just over 18 psi of boost, which I guess should be a good number. However, my EBP was 17 psi higher than my MAP reading. Is this bad?
Finally, is there a way to play a session back without having AE hooked up? I can't seem to figure that out... Thanks for taking the time to teach us!
'If you are looking at your truck with a scan tool, expect 1-3 PSI differential between EPB and MAP while driving "sanely". You'll see between 6 - 9 or even 10 PSI differential at high load... like WOT at high speed, pulling a grade, a headwind, or trying to break something at a tractor pull. If your EBPV is on because of a decel tune, expect really big pounds for backpressure readings (upwards of 40 PSI indicated) and bupkis for boost (like 1 or 2 PSI indicated).'
Based on subtracting KOEO reading of MAP from a WOT run, I believe I have just over 18 psi of boost, which I guess should be a good number. However, my EBP was 17 psi higher than my MAP reading. Is this bad?
Finally, is there a way to play a session back without having AE hooked up? I can't seem to figure that out... Thanks for taking the time to teach us!
Open your AE right now (no connection to anything) and click "Data Logging File". You can select any file recorded on an AE and play back a maximum of 4 PIDs at a time with graphing.
I am itching to try this out!!
Senior User
Joined: Dec 2012
Posts: 373
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From: Arlington, Texas
I cannot get my session to play back. I go to "Data logging file", then choose my one and only run and a data logging error pops up and says "Range or units values are missing or corrupt". Am I doing something wrong with the recording?
Senior User
Joined: Dec 2012
Posts: 373
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From: Arlington, Texas
Ok here is what I have sitting in my driveway not running. I am at 600ft here in Arlington,Texas. I am thinking that this is ok? I also did a KOEO test with the oil up to temp and I got a P0605 code? Also ran a CCT and got a P0284 cylinder 8 balance fault?
Not Running:
EBP) 14.39
MAP) 14.3
Baro Press) 4.53
While running:
EBP) 14.8-15.1
MAP) 14.2-14.4
Baro Press) 4.53
If I knew how to do screenshots or post a vid of my results I would. This is all new to me, so please be patient with my ignorance. Thanks guys!
Not Running:
EBP) 14.39
MAP) 14.3
Baro Press) 4.53
While running:
EBP) 14.8-15.1
MAP) 14.2-14.4
Baro Press) 4.53
If I knew how to do screenshots or post a vid of my results I would. This is all new to me, so please be patient with my ignorance. Thanks guys!
Thread Starter
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Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
EBP and MAP look excellent.
IF your data is corrupt, something went wrong on that recording. If you rename the last part of the file name ".csv" to ".doc", you can attach it here and the data might be reparable. Try to record again, because it might have just been a hiccup on that run.
Ignore that P0284, it's common for a grey CPS to trigger that code on cylinder 8.
I get that P0605 and the KAM error all the time, but I have yet to see it be an issue.
IF your data is corrupt, something went wrong on that recording. If you rename the last part of the file name ".csv" to ".doc", you can attach it here and the data might be reparable. Try to record again, because it might have just been a hiccup on that run.
Ignore that P0284, it's common for a grey CPS to trigger that code on cylinder 8.
I get that P0605 and the KAM error all the time, but I have yet to see it be an issue.