7.3L occasional rough running, got AE, what's next?
#32
Join Date: Mar 2015
Location: Blairsville, Pennsylvania
Posts: 5,277
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26 Posts
Appreciate it
Here's a link to the thread TorquePro Logging Quickstart Guide: https://www.ford-trucks.com/forums/1...l#post15488993
It also has a screenshot of the BT adapter I use
Here's a link to the thread TorquePro Logging Quickstart Guide: https://www.ford-trucks.com/forums/1...l#post15488993
It also has a screenshot of the BT adapter I use
#35
That is what Tugly is thinking. The pic he posted above in post #33 is of the zener diode type boost fooler that over time can give you MAP error problems- if you do have this type boost fooler then remove it and do another stock data log run and see if we get the MAP & boost back to where it should be. If not it could be a boost leak or both.
#36
In the above graph in post #33 here is what is not right after talking with Tugly about this data graph.
The boost is maxing out at 14.7 psi - should be 17-18 with the wastegate and 20-22 with the wastegate capped
the MAP is not going any higher than 29 while EBP is pushing 49 psi. almost a 2:1 pressure ratio.
edit: the EBP is spiking up and down.
Anything I missed Tugly?
The boost is maxing out at 14.7 psi - should be 17-18 with the wastegate and 20-22 with the wastegate capped
the MAP is not going any higher than 29 while EBP is pushing 49 psi. almost a 2:1 pressure ratio.
edit: the EBP is spiking up and down.
Anything I missed Tugly?
#37
I think you covered our concerns until we can get some true data with stock tune. I also hate that seconds scale on FIPW. How many vehicles hold injectors open so long that it needs to be measured with a freaking calendar? "Wow, my injectors are open for 0.00002 days!" This is not the driver's fault, this is AE running amok.
I would set that FIPW scale value at 1000.
I would set that FIPW scale value at 1000.
#38
#39
#40
I have a pressure regulator shielding the computer from seeing the full boost, not a diode. My waste gate is clamped down pretty far so I build more than stock boost. Should I adjust the regulator up some? I don't like it when the truck puts me in time out for having too much fun!
Your pressure regulator is set to 14 PSI - you can bump it up to 22 PSI and that will prevent you from being grounded.
#41
#42
Uh-huh. Please note the FIPW (close to where I said it would be), the HPOI (way above the limit of 10), the ICP (low to normal), and the IPR (high to higher).
STOCK
Stock tune, please make note of the ICP, IPR, and FIPW.
#43
ok.........so what does this all mean?
I have clear marching orders on that boost pressure regulator. I will pull it from the system and do another drive to collect data. I'm heading to the airport this evening and have a nice long drive, much of it on the highway, so I can get some WOT pulls without feeling like I'm going to kill innocent bystanders. Before I plug that regulator back in I'll reset it to 22psi.
But what does this talk of High Pressure Oil Inefficiency mean? Too early to tell, without some data without that regulator in the loop?
Thanks All!
I have clear marching orders on that boost pressure regulator. I will pull it from the system and do another drive to collect data. I'm heading to the airport this evening and have a nice long drive, much of it on the highway, so I can get some WOT pulls without feeling like I'm going to kill innocent bystanders. Before I plug that regulator back in I'll reset it to 22psi.
But what does this talk of High Pressure Oil Inefficiency mean? Too early to tell, without some data without that regulator in the loop?
Thanks All!
#44
The high HPOI indicates the HPOP can't keep up with the tune. Does that mean the HPOP is weak? Not necessarily. It means the tune is demanding more oil than the HPOP can deliver, and putting another HPOP in might not completely cure the root issue. More oil means more fuel until there's no fuel left in the injector reservoir. After that point, more oil demand just means more work for the HPOP, without any performance returns. To the contrary, excessive oil demand can diminish the ICP, spike the IPR, and leave you with a tattle-tale Stinky Spike on the data log.
When this happens, a shift up feels like you have plenty of torque, but the torque ebbs with higher RPMs. If there's one thing I learned with these rigs, the oomph never really backs off at higher RPMs with a 100% truck and a tune balanced to the truck. Of course, I have gone through the expense/hassle of "canned" tunes, modified tunes, and live tunes on multiple chips from multiple providers to learn this - so it won't be common knowledge.
After you fix the MAP reading, here is something you can do to spice up the engine performance on your performance tune that takes zerro work or expense (how's that for incentive to try it?): Floor the truck while logging, and make note of things not being logged - like the permagrin-O-meter and the soot out the pipe. After that, take the throttle to 1/2 to 2/3 and make the same observations and logging. Let us know what you learn.
When this happens, a shift up feels like you have plenty of torque, but the torque ebbs with higher RPMs. If there's one thing I learned with these rigs, the oomph never really backs off at higher RPMs with a 100% truck and a tune balanced to the truck. Of course, I have gone through the expense/hassle of "canned" tunes, modified tunes, and live tunes on multiple chips from multiple providers to learn this - so it won't be common knowledge.
After you fix the MAP reading, here is something you can do to spice up the engine performance on your performance tune that takes zerro work or expense (how's that for incentive to try it?): Floor the truck while logging, and make note of things not being logged - like the permagrin-O-meter and the soot out the pipe. After that, take the throttle to 1/2 to 2/3 and make the same observations and logging. Let us know what you learn.
#45
After you fix the MAP reading, here is something you can do to spice up the engine performance on your performance tune that takes zerro work or expense (how's that for incentive to try it?): Floor the truck while logging, and make note of things not being logged - like the permagrin-O-meter and the soot out the pipe. After that, take the throttle to 1/2 to 2/3 and make the same observations and logging. Let us know what you learn.
I'll perform that discovery excercise this afternoon on the way to the airport!