On-Device Datalogging with Xcal2 Tutorial - TCCoA Forums

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post #1 of 48 (permalink) Old 07-26-2011, 04:02 PM Thread Starter
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On-Device Datalogging with Xcal2 Tutorial

In this tutorial, I'm gonna go over the basics and not so basics of datalogging OBDII Ford vehicles with an Xcal2 with the On-Device logging feature that allows you to log data straight onto the Xcal2 unit.

It basically consists of the following:
  1. Preliminary--installing Xcal2 drivers onto computer/laptop
  2. Preliminary--Installing and running LiveLink 6 on computer/laptop.
  3. Creating a list of parameters to log using LiveLink 6.
  4. Sending that list of parameters to the Xcal2 device.
  5. Logging the vehicle using the Xcal2 device.
  6. Retrieving the datalog from the Xcal2 using LiveLink6.
  7. Analyzing the data.

Last edited by guitar maestro; 07-27-2011 at 12:20 AM.
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post #2 of 48 (permalink) Old 07-26-2011, 04:02 PM Thread Starter
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Lets start with the basics.

1. Download the Xcal2 drivers here:

http://www.mediafire.com/?yn1mjdnoynm

To avoid any issues with the Xcal2, I suggest everyone download and install the driver's PRIOR to connecting the Xcal2 to your computer. Otherwise, you'll still have to go through the "Add Hardware Wizard" twice to load the drivers.


2. Next download and install the latest version of LiveLink datalogging software (v6.4):

http://www.mediafire.com/?weldp5gpc9gtsv8

Last edited by guitar maestro; 07-29-2011 at 02:53 PM.
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post #3 of 48 (permalink) Old 07-26-2011, 05:53 PM Thread Starter
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Now onto pcm stategies.

The pcm's strategy is an 5-character alpha-numeric code that identifies the master program on it. The "box code", "catch code", or "pcm code" as they are sometimes referred to are not the same as the strategy. The pcm codes (which are found on the pcm label) are simply known as "database/tune files" which very simply can be referred to as "the tune" on a stock pcm. The strategy is not on the pcm label, or anywhere else on the vehicle.

You'll sound a whole lot smarter if you learn these differences now, that way when you have questions that need answering regarding datalogging, you can use the proper terms that people who do know tuning/logging will be able to properly recognize.

So again....






You need to know which strategy your pcm is running to be able to properly create the list of parameters you want to log. This has nothing to do with the actual tune on the pcm; the strategy is what dictates which parameters are available for datalogging, not the tune on the pcm.

As far as I know:

All 96-97 MN12s regardless of engine configuration use the CDAN4 strategy.

Most 94-95 Tbirds use the CCAQE strategy. Some may use the CCAQ or CCAQA strategy.


To find out which strategy your pcm is running, go to your car, connect your Xcal2 to the OBDII connector, and switch on your ignition, if your car is not already running. Turning On the ignition can be done at a later step if you wish.

So here is the run down to get your strategy if you have a 94/95 MN12, or if you just wanna use the Xcal2 to see it get the strategy off your 96/97.

















At this point, you're done getting the strategy as long as you memorize it or write it down or whatever. You can now hit Select, Cancel, or simply disconnect the Xcal2 from your car; it's all the same.

Now we can go back to the computer and LiveLink 6.

Last edited by guitar maestro; 07-26-2011 at 06:31 PM.
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post #4 of 48 (permalink) Old 07-26-2011, 10:06 PM Thread Starter
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Now here is what LiveLink 6 looks like:




Now we're going to setup some very basic parameters to log just to get a feel for things. At this point, you may as well go ahead and connect the Xcal2 to your computer with the usb A/B cable.

Lets go through the process of selecting (up to 15) parameters for on-device datalogging.













Hit OK....



























Now we can finally go and datalog in the car!

Last edited by guitar maestro; 07-27-2011 at 12:21 AM.
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post #5 of 48 (permalink) Old 07-27-2011, 12:19 AM Thread Starter
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I can't datalog my Cougar, so I logged my '04 F150...here are some screenshots






ACT and battery voltage with the engine off...yep...90+ degrees at midnight here..lol



and then with the engine running






as you can see here, my long term fuel trims are showing ~9% lean on both banks....±4% is ok, but anything more indicates a problem....looks like I've got work to do.




short term trims hovering from 0.98-1.01, so no more correction is being done by the pcm

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post #6 of 48 (permalink) Old 07-27-2011, 12:21 AM Thread Starter
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Questions and comments now welcome.
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post #7 of 48 (permalink) Old 07-27-2011, 06:03 AM
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Very nice writeup!

The only thing I would add is that you can't set an analog input for on device datalogging. Analog inputs only work with a laptop hooked up.

A question: Are there datalogging differences with the Xcals with the Blue screens? I thought I read somewhere that they have more memory... (I have one like this.)

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post #8 of 48 (permalink) Old 07-27-2011, 08:38 AM
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Excellent and very informative. Best post here in a long time. Thankyou

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post #9 of 48 (permalink) Old 07-27-2011, 01:48 PM Thread Starter
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Quote:
Originally Posted by Grog6 View Post
Very nice writeup!

The only thing I would add is that you can't set an analog input for on device datalogging. Analog inputs only work with a laptop hooked up.

A question: Are there datalogging differences with the Xcals with the Blue screens? I thought I read somewhere that they have more memory... (I have one like this.)
There's plenty more to add. This is just to get the newbs started off.

I can only vouch for the green screen Xcal2's since thats what I have.
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post #10 of 48 (permalink) Old 07-27-2011, 02:36 PM Thread Starter
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from a LiveLink Help file:

Ford Fuel Trims



When you are at wot you should be in OPEN loop.

Short term trims at WOT display the fuel that you are commanding in the base fuel table

or cold fuel table if certain timers/ect temps are not met.



Example for Closed Loop Operations.



Short_Term_Fuel_Trims

1. ST trim = .86 Then the pcm thinks the mixture is too lean. ADD 14% fuel

To fix this you would add fuel…do this by increasing the MAF curve in that area.


2. ST trim = 1.14 Then the pcm thinks the mixture is too rich. Remove 14% fuel

To fix this you would remove fuel....do this by LOWERING the MAF curve in that area.

The "to fix this..." parts apply if and only if the LTFTs are showing ~1.00 at the same time. Otherwise the total correction is not just the fractional part of the fuel trim, but a combination of the fractional parts of the STFT & LTFT.


Long_Term_Fuel_Trims

1. LT trim = 1.14 Then the pcm thinks the mixture is too lean. ADD 14% fuel

To fix this you would add fuel....do this by increasing the MAF curve in that area.



2. LT trim = .86 Then the pcm thinks the mixture is too rich. Remove 14% fuel

To fix this you would remove fuel....do this by LOWERING the MAF curve in that area.

The "to fix this..." parts apply if and only if the STFTs are showing ~1.00 at the same time. Otherwise the total correction is not just the fractional part of the fuel trim, but a combination of the fractional parts of the STFT & LTFT.

Last edited by guitar maestro; 07-29-2011 at 02:45 PM.
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post #11 of 48 (permalink) Old 07-27-2011, 02:42 PM Thread Starter
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Source Values



Spark Source Values:



0 Crank or under speed
1 Base
2 Borderline
3 Torque control
4 Pre-ignition
6 Stabilized low load
7 Cold engine low load
8 Idle feedback at minimum clip
9 Idle feedback
10 Spark set by on-demand self-test
15 Output State Control
16 Foreground Spark Borderline Clip
18 Closed-Throttle Deceleration Spark



Fuel Source



0 Closed Loop fuel control mode is active.
1 Cylinder cutout - Stabilized - Short Term Fuel Trim at lean stability limit.
2 Some Exhaust Component too hot - Enrich Short Term Fuel Trim to cool exhaust temperatures.
3 Cylinder cutout - Stabilized - Short Term Fuel Trim controlled by torque control feature.
4 Cold engine/startup open loop logic – Cold start up engine table
5 Stabilized normal drivability logic - Base fuel Table
6 Lean fuel error logic.
7 Engine running EGO monitoring testing - intrusive Short Term Fuel Trim control.
8 Engine running On-Demand testing - Short Term Fuel Trim controlled by OBD-II exec.
9 Cylinder cutout - Cold Engine - Short Term FuelTrim controlled rich to avoid stumbles.
10 Snap Adaptive - ramping Short Term Fuel Trim towards stoich for KAM update.
12 Thermactor Air test - intrusive Short Term Fuel Trim control.
13 Open Loop Development override - Short Term Fuel Trim set to calibrated scalar.



TQ_SOURCE Identifies the source of the torque reduction requestor



0 No Torque Reduction Requested (Torque Control Off)
1 Torque truncation, transmission
2 Traction Control
3 Vehicle Speed Limiter
4 Engine Speed Limiter
5 Tip-in shock Control
6 Tip-out Decel Control
7 Torque Shift Modulation, transmission
8 Engine Oil Temperature Control
9 Fail Safe Cooling Control
11 Turbo Charger
12 Passive Anti Theft system (PATS)
13 Tip in Torque Control



TQ_SOURCE Source of torque reduction:



0 Driver Demand
1 Transmission torque truncation
2 Traction Control
3 Vehicle Speed Limiting
4 Engine Speed Limiting
5 Tipin rate limiting
6 Tipout torque
7 Transmission Shift Modulation
8 Engine Oil Over temperature
9 Target N
10 Not Used
11 ETC FMEM - RPM Guard
12 PATS
13 OSCMOD
14 Speed Control
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post #12 of 48 (permalink) Old 07-29-2011, 02:42 PM Thread Starter
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Processor (ECM) Type
Vehicles

88k EEC V
1994-1995 V6 (3.8) Mustangs

112k EEC V
1996-1997 Mustangs

216k EECV

1998-2004 Mustangs, 7.3 Liter Diesel F-Series, Marauder,

216k EECV
Z-TEC Focus, Lightning Truck, Harley Truck, 2004 4.2

216k EECV
liter F-150, 2004 F-250 5.4 Liter, 2004 F-series V-10

1472k Black Oak SCP
SVT Focus

1472k Black Oak CAN
2005 -2006 F-150, 2004 4.6 F-150, 2004 5.4 F-150

1024k Spanish Oak
2005-2006 Mustangs, 2005 F-250, 2005 F-Series V10

1024k PTEC
Lincoln LS, Late model T-Bird. Explorer

448k Black Oak
2003-2004 6.0 Diesel F-Series

512 Black Oak
2005-2006 6.0 Diesel F-Series
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post #13 of 48 (permalink) Old 07-29-2011, 04:26 PM
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This is great!!! Thanks!!!!!!!!!
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post #14 of 48 (permalink) Old 08-02-2011, 07:08 AM
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Quote:
Originally Posted by Buckcreekbilly View Post
Excellent and very informative. Best post here in a long time. Thankyou
x2.

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post #15 of 48 (permalink) Old 08-21-2011, 03:11 PM
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This should probably be in a new thread, but...

I've been analysing a few dataloging runs, and I see some strange things...

Why would my car's spark source go to "7 Cold engine low load" when the coolant temp is 200°, and the tranny is at 180°? This is at a low throttle position at the end of a wot run.

Would a change in temperature over a run cause it? I went from 194 to 200 pretty rapidly, lol.

It returns to the borderline table after that, but it does it more than once...

This is my own tune, so...

Red '96 Cougar XR-7 240k mi. '02 4R70W, PST DS : '03 PI engine, 04 maf, 24lb injectors, 2.5" exhaust, '02 4r70w + Jmod, DirtyD0g TC + cooler + 3/8" lines, 255 walbro fp. Alpine system.
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post #16 of 48 (permalink) Old 08-23-2011, 05:47 PM Thread Starter
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Sometimes the parameter descriptions aren't as obvious as their name seems to imply. You could always look at the decompiled code to see which inputs the pcm uses (at least a rough idea from the code that I linked in my mediafire hosting page).
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post #17 of 48 (permalink) Old 10-05-2011, 08:29 PM
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I have a 99 Lightning that is running lean. When I datalog, what are good and bad numbers for that?

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post #18 of 48 (permalink) Old 10-05-2011, 09:47 PM
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The short term and long term fuel trims are the big thing, although you should look at the maf counts and IAC setting as well.

Low iac can indicate a vacuum leak.

The fuel trims show how rich/lean the mix is reading.

I just saw your other thread; you might want to do a compression check first.

Red '96 Cougar XR-7 240k mi. '02 4R70W, PST DS : '03 PI engine, 04 maf, 24lb injectors, 2.5" exhaust, '02 4r70w + Jmod, DirtyD0g TC + cooler + 3/8" lines, 255 walbro fp. Alpine system.
Black '96 Cougar XR-7 (Lazarus) 210k mi PI Intake, '02 4R70W, Jmod, PST DS, GrogTune, Konis, Mark LCA+Poly, racecougar Custom Engine Chain, and JL and racecougar Bracing.
Black '97 Tbird Limited Edition, '02 4R70W, 255 walbro, PST DS, PBR Brakes&SS lines, Toicko Blues & Springs, GrogTune.

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post #19 of 48 (permalink) Old 10-08-2011, 12:24 PM Thread Starter
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Quote:
Originally Posted by Grog6 View Post

The fuel trims show how rich/lean the mix is reading.
Correction, fuel trims show how much correction has already taken place to bring the air:fuel to the desired lambda. Only way to see what the actual rich/lean status without correcting it is with an external WB O2 setup.
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post #20 of 48 (permalink) Old 10-08-2011, 07:11 PM
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Quote:
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Correction, fuel trims show how much correction has already taken place to bring the air:fuel to the desired lambda. Only way to see what the actual rich/lean status without correcting it is with an external WB O2 setup.
I wasn't very precise; as you said, only a WB Reads the mix you're actually getting.

The fuel trims are what the car thinks it needs to do to make the mix right; a bad sensor or other issue can make a huge reality shift between what is actually happening, and what the eec thinks is happening.

That's why "Clean the maf" is such a universal cure, lol.

OxmanWI, based on your pix in the other thread, I think this kind of an eec/world disconnect may have happened. Or you held the nitrous down too long.

Remember, when it feels really, really good, let off; you're about to break something. This goes for wheelies too, lol.

Red '96 Cougar XR-7 240k mi. '02 4R70W, PST DS : '03 PI engine, 04 maf, 24lb injectors, 2.5" exhaust, '02 4r70w + Jmod, DirtyD0g TC + cooler + 3/8" lines, 255 walbro fp. Alpine system.
Black '96 Cougar XR-7 (Lazarus) 210k mi PI Intake, '02 4R70W, Jmod, PST DS, GrogTune, Konis, Mark LCA+Poly, racecougar Custom Engine Chain, and JL and racecougar Bracing.
Black '97 Tbird Limited Edition, '02 4R70W, 255 walbro, PST DS, PBR Brakes&SS lines, Toicko Blues & Springs, GrogTune.

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post #21 of 48 (permalink) Old 10-09-2011, 07:25 PM
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Can I have an SCT tuner install a new tune on my X-cal 2 that I got from Lonnie? This guy is local and he wants to check my tune to see if lonnie has done somthing effecting my TC lockup but Lonnie wont send me a copy of my tune. I was thinking of just doing away with Lonnies tune and having this guy make one unless there's a way he can get Lonnies tune off the programmer itself.
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post #22 of 48 (permalink) Old 10-09-2011, 07:32 PM
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Yep, you can load up to three tunes on an XCal2.

I'm actually kind of eager to get Lonnie's tune off of my car - especially after the way he treated me last time I got in touch with him. I think I'll go with Don Lasota per Chris Murder's recommendation. Plus, he's local to me.

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post #23 of 48 (permalink) Old 10-09-2011, 08:17 PM
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Yeah Lonnie was kind of a jerk to me as well when I asked him about it. The lockup still engages even with the OD off which I was told its not suppose to and it even locked up idling in park and killed the motor. DD thinks its my TC and I dont doubt his knowledge at all but it just seems electrical to me but I cant find anything thats unplugged or done wrong. Another guy I talked to seems to think its in the tune as well. Its the only thing I can think of. It will never throw a tranny code no matter how much or long it it does it.
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post #24 of 48 (permalink) Old 10-09-2011, 08:30 PM Thread Starter
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most SCT dealers won't be able to read the tunes off the Xcal2. They could however read the tune off of the pcm if they have the right stuff.
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post #25 of 48 (permalink) Old 10-09-2011, 08:59 PM
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I will ask him about that when I talk to him again. Thanks GM. Im at my wits end with this problem.
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post #26 of 48 (permalink) Old 10-10-2011, 08:20 PM
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Quote:
Originally Posted by ROLLINTHUNDER View Post
Can I have an SCT tuner install a new tune on my X-cal 2 that I got from Lonnie? This guy is local and he wants to check my tune to see if lonnie has done somthing effecting my TC lockup but Lonnie wont send me a copy of my tune. I was thinking of just doing away with Lonnies tune and having this guy make one unless there's a way he can get Lonnies tune off the programmer itself.
Be sure not to overwrite your stock tune; that can cause issues. Or just return it to stock before adding a tune to the xcal to be safe.

Anyone can write a tune for you; can they do it without breaking anything, that's the question.

Don's in the SCT book I got with the software; I'd say that's an good enough for me...

Red '96 Cougar XR-7 240k mi. '02 4R70W, PST DS : '03 PI engine, 04 maf, 24lb injectors, 2.5" exhaust, '02 4r70w + Jmod, DirtyD0g TC + cooler + 3/8" lines, 255 walbro fp. Alpine system.
Black '96 Cougar XR-7 (Lazarus) 210k mi PI Intake, '02 4R70W, Jmod, PST DS, GrogTune, Konis, Mark LCA+Poly, racecougar Custom Engine Chain, and JL and racecougar Bracing.
Black '97 Tbird Limited Edition, '02 4R70W, 255 walbro, PST DS, PBR Brakes&SS lines, Toicko Blues & Springs, GrogTune.

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post #27 of 48 (permalink) Old 10-12-2011, 08:57 PM
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Nice write up. Def something for me to look into..hmmm
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post #28 of 48 (permalink) Old 11-20-2011, 09:26 PM
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Those were excellent and easy instructions to follow there GM! I can finally do some datalogging. I put on there the long and short fuel trims for both banks, O2 sensor readings, maf counts and my TC lockup cycle to diagnose this LTFT problem. I will be using my X-cal for the process so I will write down what it says. Thanks for the write up.
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post #29 of 48 (permalink) Old 04-24-2012, 03:16 PM
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Originally Posted by guitar maestro View Post
Lets start with the basics.

1. Download the Xcal2 drivers here:

http://www.mediafire.com/?yn1mjdnoynm

To avoid any issues with the Xcal2, I suggest everyone download and install the driver's PRIOR to connecting the Xcal2 to your computer. Otherwise, you'll still have to go through the "Add Hardware Wizard" twice to load the drivers.


2. Next download and install the latest version of LiveLink datalogging software (v6.4):

http://www.mediafire.com/?weldp5gpc9gtsv8
so your saying you can use a xcal2 programmer on a 95 car? what about a 96 computer in a 95 car?
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post #30 of 48 (permalink) Old 04-24-2012, 03:34 PM Thread Starter
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Yes and yes. But swapping pcm's requires work.
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