Why does she run so good?
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Lead Driver
Joined: Sep 2003
Posts: 5,241
Likes: 3
From: Other side of the sunrise
Why does she run so good?
I just had new heads put on, stock gaskets, ARP studs, upgraded standpipes, upgraded dummy plugs, upgraded STC fitting, changed to ELC1, upgraded to blue spring and returned to stock tune with the latest flash.
Now, with all of that, why the heck does my truck run so darned good? Not as good as the SRL tune, but she's running so good that I think I'm plenty happy to just run stock and leave the custom tunes on the shelf. I don't remember my stock tune before performing so good. The only thing I can think of is the blue spring??? Can just the blue spring upgrade make this kind of improvement? Maybe the latest flash??? I mean, she's running like a stripe-azzed ape, but no smoke...
Now, with all of that, why the heck does my truck run so darned good? Not as good as the SRL tune, but she's running so good that I think I'm plenty happy to just run stock and leave the custom tunes on the shelf. I don't remember my stock tune before performing so good. The only thing I can think of is the blue spring??? Can just the blue spring upgrade make this kind of improvement? Maybe the latest flash??? I mean, she's running like a stripe-azzed ape, but no smoke...
Lead Driver
Joined: Feb 2011
Posts: 8,241
Likes: 155
From: L.A. (Lower Alabama)
Thread Starter
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Lead Driver
Joined: Sep 2003
Posts: 5,241
Likes: 3
From: Other side of the sunrise
Woah, I'd better get out there and pull off the negative cables. Thanks for the link. Sheesh. I towed 12K with this tune for about 100 miles and up a couple of grades. I HOPE it was stock!...
It didn't perform like the SRL, which was in before, but still performed better than I ever remember stock tune working before. There was still turbo lag, long cranks to start, and no smoke like stock. But seemed to have great power for. stock. I lit the tires up. Still no smoke, except for the tires.
Although that was while turning left onto a highway...
It didn't perform like the SRL, which was in before, but still performed better than I ever remember stock tune working before. There was still turbo lag, long cranks to start, and no smoke like stock. But seemed to have great power for. stock. I lit the tires up. Still no smoke, except for the tires.
Although that was while turning left onto a highway...
Fleet Owner
Joined: Mar 2003
Posts: 24,724
Likes: 74
From: Blue Hill Township
I've never disconnected the negative battery cable after reflashing the truck to stock (not that it happens but once or twice a year 
) and can definitely tell that the truck is back to stock.
Just goes to show that these trucks aren't turds like a 7.3 when they are on the stock tune.
) and can definitely tell that the truck is back to stock.Just goes to show that these trucks aren't turds like a 7.3 when they are on the stock tune.
Fleet Owner
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
Also disconnecting the batteries won't remove a tune.
It's stored in a device called EEPROM
https://en.wikipedia.org/wiki/EEPROM
Here is a little snip for you to read.
EEPROM (also written E2PROM and pronounced "e-e-prom," "double-e prom," "e-squared,"
or simply "e-prom") stands for Electrically Erasable Programmable Read-Only Memory and is a type of non-volatile
memory used in computers and other electronic devices to store small amounts of data that must be saved when
power is removed, e.g., calibration tables or device configuration.
The only way to remove a tune is to reprogram the unit.
Ford can do that but you be spending some $$ and if you have the tuner
you should have the stock tune.
Sean
It's stored in a device called EEPROM
https://en.wikipedia.org/wiki/EEPROM
Here is a little snip for you to read.
EEPROM (also written E2PROM and pronounced "e-e-prom," "double-e prom," "e-squared,"
or simply "e-prom") stands for Electrically Erasable Programmable Read-Only Memory and is a type of non-volatile
memory used in computers and other electronic devices to store small amounts of data that must be saved when
power is removed, e.g., calibration tables or device configuration.
The only way to remove a tune is to reprogram the unit.
Ford can do that but you be spending some $$ and if you have the tuner
you should have the stock tune.
Sean
Lead Driver
Joined: Jul 2004
Posts: 6,950
Likes: 510
From: Foothills, CA
So Tim did they happen to do anything else while it was apart, like say clean the turbo? My shop did that as a freebie and I noticed more responsiveness a meatier mid-range (can lug out of things it always would downshift in before) and better mileage. My turbo must have been pretty sticky before -- it still had variable, just seemed like it was stepped (it more jumped than smooth) if you follow?
And also you went from a sick truck to a healthy one too.
Nice to see you back in that positive frame of mind we all were used to
And also you went from a sick truck to a healthy one too.
Nice to see you back in that positive frame of mind we all were used to
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Hotshot
Joined: Dec 2003
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From: Stuttgart, Ar
Tim--Just plug the tuner in and try to load a tune OR see if it will let you go back to stock.
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Hotshot
Joined: Aug 2006
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From: Whittier, CA
My truck, in fact all of my PCM vehicles, always run great after a battery disconnect. Then they start learning bad stuff from the other kids, and maybe learning my bad habits too, and performance drops back to normal.
Thread Starter
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Lead Driver
Joined: Sep 2003
Posts: 5,241
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From: Other side of the sunrise
I did reload back to stock, except I followed through a little further to turn off egr. That's the only thing I did differently than when loading stock tune in before. In the past I usually ran one of the custom tunes so I didn't have to look at the CEL for low exhaust flow. This time, I put in stock tune and turned off egr.
When it was in the shop, they reflashed with the latest from Ford. I did that for the turbo sweep and CEL features for oil cooler safety. Did the latest flash have any more umph?
I don't know if they threw in a turbo cleaning. I'll have to ask next time I get a chance to talk with the mechanic. He can be hard to get ahold of but I hope to remember to ask him next time I talk with him. That could certainly make the difference I'm feeling.
When it was in the shop, they reflashed with the latest from Ford. I did that for the turbo sweep and CEL features for oil cooler safety. Did the latest flash have any more umph?
I don't know if they threw in a turbo cleaning. I'll have to ask next time I get a chance to talk with the mechanic. He can be hard to get ahold of but I hope to remember to ask him next time I talk with him. That could certainly make the difference I'm feeling.
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
I did reload back to stock, except I followed through a little further to turn off egr. That's the only thing I did differently than when loading stock tune in before. In the past I usually ran one of the custom tunes so I didn't have to look at the CEL for low exhaust flow. This time, I put in stock tune and turned off egr.
When it was in the shop, they reflashed with the latest from Ford. I did that for the turbo sweep and CEL features for oil cooler safety. Did the latest flash have any more umph?
I don't know if they threw in a turbo cleaning. I'll have to ask next time I get a chance to talk with the mechanic. He can be hard to get ahold of but I hope to remember to ask him next time I talk with him. That could certainly make the difference I'm feeling.
When it was in the shop, they reflashed with the latest from Ford. I did that for the turbo sweep and CEL features for oil cooler safety. Did the latest flash have any more umph?
I don't know if they threw in a turbo cleaning. I'll have to ask next time I get a chance to talk with the mechanic. He can be hard to get ahold of but I hope to remember to ask him next time I talk with him. That could certainly make the difference I'm feeling.
Thread Starter
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Lead Driver
Joined: Sep 2003
Posts: 5,241
Likes: 3
From: Other side of the sunrise
I talked with the mechanic before he flashed it. We talked about it and he did in fact return it to stock, using my SCT SF3 prior to flashing it with the latest stock tune. Before driving home (500 miles) I reprogrammed to SRL for the drive home, mainly so I didn't have to look at the CEL. I wasn't sure how to turn off egr with stock tune at that time. Once home, I returned it to stock (last week). I continued the process with the SCT tuning after returning to stock to turn off egr (in transmission settings). I'm pretty positive that all was done correctly.
Fleet Owner
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
One thing that it could of been is it could of been running so poorly
that with ALL the new parts that it increased the injector pressure and
that is why your running so much better. After all you did
upgraded standpipes, upgraded dummy plugs, upgraded STC fitting
If they were getting a little bit by at each point it can add up. Better pressure
will give you a better spray pattern and more complete burning of the fuel. That
in it's self will make the engine run that much better.
Sean
that with ALL the new parts that it increased the injector pressure and
that is why your running so much better. After all you did
upgraded standpipes, upgraded dummy plugs, upgraded STC fitting
If they were getting a little bit by at each point it can add up. Better pressure
will give you a better spray pattern and more complete burning of the fuel. That
in it's self will make the engine run that much better.
Sean