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Yeah, whats up with that? I went outside to start my truck and it was 8F out, where's my 40F that the weatherman was promising?
That mud bit will definitely ring true, I didn't get a chance to clean the cattle yards out much last fall, so this spring I'm sure it will be plenty full. Chances are I'll be hauling like a madman over break, unless it thaws too much, then I gotta keep the tractor outta the field, compaction sucks.
Well I made a couple data runs today, got something weird going on, my AE will just stop receiving values it seems like, but the OBDII adapter blue light is still blinking. It did it twice. I am getting fed up with this truck so I didn't get a data point with the ICP unplugged. I'll probably try it later, but for now, here are the data graphs.
This is of the entire run, even after it cut out in the stock tune.
This is a close up of before it cut out of the same run as above.
This is the entire run I did earlier this morning, I had bumped between my stock and my DD tune. This one cut out at some point too, but it doesn't show. Also I can't tell what all is on the graph. It appears to have my drive out into the country side, but not my driveback? It also seems to have all of my accelaration points on the drive back, but none of the steady driving points? I wish I could make it clear what I was doing in this graph but it just doesn't make sense to me.
Thanks for looking at this guys, its driving me nuts.
I see it all. You went WOT to get up to highway speed, then set the cruise control. The road has hills (or the wind picked up), and the engine was compensating to maintain speed.
Your WOT is as anemic as it gets, and the ICP is total prune juice. There is no way you have that IPR with that ICP - and the PCM is calling for a lot of fuel without the engine reacting in a meaningful way.
This is the best I can do with scribble on a screen. I would really need to get my hands on the raw data. Are you able to rename the extension from CSV to DOC and post it here? I have one other person in front of you, but I can look at it this weekend.
Rich, I am not sure on how to get it to DOC, would a copy paste to Word work or is there another way I should go about it? I can also email to you if that would work better. I'm fairly computer savvy so if there's a step or two I gotta do that'll be fine.
Is there any chance you could tell me a little bit more about what you're seeing? I thought my truck was pretty standard for a stock truck in a stock tune, but I take it that's not so?
Look at the location where the data logging file is saved. it should be an Excel spreadsheet file, unless the newer Auto Enginuity software has changed.
Your truck is standard - just not acting like it - because the sensor(s) are telling the PCM that it's doing this when it actually is doing that.....
The ICP (red) isn't going up fast enough so the PCM is sending more fuel (green lines)..... then she shoots up to 2600+ psi - all of a sudden dropping to to 700. So the PCM is chasing the red ICP line all over tryng to make the power you are asking for. Then on top of it, when you are at higher ICP levels the IPR is only reporting about 1/2 the value it should.
If the PCM where human - it would be asking for a beer and another on standby right now.....
Edit: The ICP sensor is kinda like reading glasses for the PCM, when you smudge your reading glasses and the numbers get all fuzzy - things don't look right and all you get is a slow old man with a headache....
I can find the files and they are Excel files but I am not sure about how to convert to DOC. I can copy paste into word but that looks like crap, so is there a recommended way?
Also, can you tell me how the truck is not acting like it? Is it something I should feel SOTP or is it just numbers not being where they should be? I realize I am the guy driving it, but you both have me interested now telling me my truck has potential...
are there a bunch of columns with the time listed between each value (ICP, ICP, DC, MFD, RPM, etc....)??If so, next time you data log go into the datalogging settings and uncheck the time log box. This will put the time log in the first column and prevent it from showing up every other column. then you can adjust the column widths in Excel so you can read it easier. After that, cut & past it to a word document or just send the CSV (excel file) to Rich.
Thanks for explaining that Rich, it makes sense, but I'm not sure why the ICP sensor would be "smudged" as per your glasses analogy, its not even a year and a half old for goodness sake.
I'll have to to that time log deal that you mentioned cause I do get a time column with everything.
I know the issue is just getting started on getting sorted out, but thank you, so far, to everyone who has contributed. I greatly appreciate it.
My guess is your ICP sensor is crapping out and is sending incorrect values to the PCM, then your PCM is asking for more to compensate. But your IPR does not reflect the corresponding duty cycle numbers that are normally associated to make such ICP values. Unless your HPOP is on some kind of Arnold Schwarzeneger steroids and only has to work 1/2 as hard as the average stock pump.
Here is an example:
Jesse's stock pump is at 40% duty cycle at 2700 ICP. You are barley getting 30% -
Sounds good, I will try to get a log of that on my way home.
I have a feeling I could mash the pedal in OD and not have to worry about my tranny downshifting on me. It's kind of a high maintenance thing, requires a lot of hand holding to get it to shift.
are there a bunch of columns with the time listed between each value (ICP, ICP, DC, MFD, RPM, etc....)??If so, next time you data log go into the datalogging settings and uncheck the time log box. This will put the time log in the first column and prevent it from showing up every other column. then you can adjust the column widths in Excel so you can read it easier. After that, cut & past it to a word document or just send the CSV (excel file) to Rich.
or e-mail me the excel file and I'll clean it up & post it here
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