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ECU reflash 2007-2009 Gt-500

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Old Feb 11, 2026 | 07:16 PM
  #1  
14topgear's Avatar
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From: New Zealand
ECU reflash 2007-2009 Gt-500

Hi guys I’m in New Zealand
i have a 2008 Shelby Super Snake that I have rebuilt
but I’m having trouble finding someone to help me get it running as the ECU was damaged
I have another ECU out of a 2008 Mustang Shelby GT500 same part number but the Catch Code is different
im looking for some way of getting hold of the program for Catch Code NBU5 which is what I’m told I need to make the car run
all the electrics are from the Mustang GT500 but I need a new program to dump onto that cars ECU to make the super snake motor run
can anyone help me
cheers Garry
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Old Feb 11, 2026 | 07:38 PM
  #2  
05stangkc's Avatar
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From: Visalia Ca.
Welcome,

https://themustangsource.com/forums/...9/#post7090848

The Above Link Has The As-Built Codes For Cars By Vin. A 2008 Gt-500 Ecm Will Only Work or Function in a 2008 Gt-500 So Sounds Like You Have Correct Ecm. I Believe What you Will Get By Vin Number Will Be The As-Built as Ford Built The Car Which Should Start Operate The Vehicle But Depending on Mods Could Cause Issues. However Depending on Super Snake Mods The Final Tune Would Likely Be Different. That Maybe If Still Available Something To Get From Shelby American. If You Want To PM Vins on Both Vehicles I Can Do a Little Digging on The Ford End and See If I Can Get any Helpful Info. It is So Hard To get a Correct, Good Ecm For a GT-500 Thee Days! I Know! I Have an 07!

Car Won't Start Without PATS Keys Being Reprogrammed as Well!

I Was Working Deep on Locating One For an 07 Awhile Back & Trying To Recall All the Details of The Ecm Codes Etc. on The Gt-500 So Give Me a Bit To get My Old Noodle To Recall it All!

If Possible I Would Like To See Entire ID# Stickers on Both Ecms as Well!

KC
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Old Feb 11, 2026 | 07:57 PM
  #3  
05stangkc's Avatar
Administrator clevparts@aol.com
 
Joined: November 27, 2004
Posts: 12,515
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From: Visalia Ca.
Ran Parts Cataloging To get Some Refreshed Info!

FYI Actual OEM Part Numbers Differ a Bit From ID# Number on Ecm.

Ok, It is Showing Some Early 2008'sI Don't Recall That From My Earlier Search. The Nbu5 But Used in all 2007's From What I have Been Told They Won't Interchange From The NBU5 to the Sxh1 if That is What you Had In Car Originally. Can't Recall Exactly Why. Getting an 07 As Built is easy Enough to Try, But Be Advised it May Be a No Go! Anyhoo I Can Dig Deeper if You Like With Your VINS & Stckers if You Like!


CZF Mustang
12A650
Module
C54SDSM3031405B
Engine Modules and Sensors
(2007/2010, FROM: 06/06/2006 TO: 03/22/2010)(5.4L 4V DOHC EFI S/C ALUM V8 G)

2007 Yes-2008 Early??

7R3Z-12A650-AFF


7ZF2SC0508 (NBU5)
.From: 06-06-2006 To: 06-26-2007 2007 / 2008
1



2008 Late 2008 & 2009 Interchange!

8R3Z-12A650-SB


8ZF2SC0505 (SXH1)
.From: 06-26-2007 To: 05-27-2008 2008



2009

9R3Z-12A650-PB

12A650
Module - Engine Control - Eec V, 9ZF2SC0505 (PZP1),
  • From: 05-27-2008, To: 02-26-2009, 2009

Part Number Superceeds on 08&09
8R3Z12A650SB
Replaced By 9R3Z12A650PBRM
9R3Z12A650PB
Replaced By 9R3Z12A650PBRM

If 07 Nbu5 Had Been Interchangable it Would Have Likely Superceeded as Well!
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Old Feb 11, 2026 | 08:07 PM
  #4  
05stangkc's Avatar
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From: Visalia Ca.
I Am Not Having Any Luck at The Moment With The Motorcraft Site!

Got it to Work has Same Info!

And is What I Found Elsewhere!

This is From My 07 As-Built!


Tear Tag: NBU5
Vehicle Data:1CFF FFFF FF18



PCM
PCM 1 FFFF FFFF 0310
PCM 2 090D 3DFF FE62
PCM 3 FFFF FFFF FF0E
PCM 4 FFFF FFFF FF0F
PCM 5 FFFF FFFF FF10
PCM 6 FFFF FFFF FF11
PCM 7 FFFF FFFF FF12
PCM 8 FFFF FFFF FF13
PCM 9 FFFF FFFF FF14

Your 2008 CarVIN:1ZVHT88S285161010
Tear Tag: SXH1
Vehicle Data: 11F8 57CE FF2D


PCM PCM 1 FFFF FFFF 0310
PCM 2 090D 3DFF FE62
PCM 3 FFFF FFFF FF0E
PCM 4 FFFF FFFF FF0F
PCM 5 FFFF FFFF FF10
PCM 6 FFFF FFFF FF11
PCM 7 FFFF FFFF FF12
PCM 8 FFFF FFFF FF13
PCM 9 FFFF FFFF FF14

BCE ICM 720-01-01 2087 8000 0050

GEM 726-01-01 206C 0020 03DE
GEM 726-02-01 2323 0000 0076
GEM 726-03-01 0403 0501 003E
GEM 726-04-01 296F 98D5 0037
GEM 726-05-01 296F 9968 00CC
GEM 726-06-01 296A F552 000E
GEM 726-07-01 296F 98D4 0039
GEM 726-08-01 0000 0000 0036

ACM 727-01-01 08C8 D07B E02B
ACM 727-01-02 0031

ACM 727-02-01 1748

SDAR 782-01-01 008B




Your Donor Car
VIN:1ZVHT88S975364166
Tear Tag: NBU5
Vehicle Data:2001 FFFF FF1E

PCM PCM 1 FFFF FFFF 0310
PCM 2 090D 3DFF FE62
PCM 3 FFFF FFFF FF0E
PCM 4 FFFF FFFF FF0F
PCM 5 FFFF FFFF FF10
PCM 6 FFFF FFFF FF11
PCM 7 FFFF FFFF FF12
PCM 8 FFFF FFFF FF13
PCM 9 FFFF FFFF FF14

BCE ICM 720-01-01 2087 8000 0050

GEM 726-01-01 006C 0020 03BE
GEM 726-02-01 2323 0000 0076
GEM 726-03-01 0403 0501 003E
GEM 726-04-01 28E4 8439 00FB
GEM 726-05-01 28E3 CE4D 0059
GEM 726-06-01 28E4 848C 0050
GEM 726-07-01 28E4 8402 00C7
GEM 726-08-01 0000 0000 0036

ACM 727-01-01 00C8 D07B E023
ACM 727-01-02 0031


ACM 727-02-01 1748
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Old Feb 12, 2026 | 11:12 AM
  #5  
Neko-'s Avatar
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Joined: November 13, 2006
Posts: 384
Likes: 22
From: The Netherlands
Welcome to the forums from the European mainland
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Old Feb 12, 2026 | 02:42 PM
  #6  
14topgear's Avatar
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Joined: February 11, 2026
Posts: 3
Likes: 1
From: New Zealand
Vin numbers

Originally Posted by 05stangkc
Welcome,

https://themustangsource.com/forums/...9/#post7090848

The Above Link Has The As-Built Codes For Cars By Vin. A 2008 Gt-500 Ecm Will Only Work or Function in a 2008 Gt-500 So Sounds Like You Have Correct Ecm. I Believe What you Will Get By Vin Number Will Be The As-Built as Ford Built The Car Which Should Start Operate The Vehicle But Depending on Mods Could Cause Issues. However Depending on Super Snake Mods The Final Tune Would Likely Be Different. That Maybe If Still Available Something To Get From Shelby American. If You Want To PM Vins on Both Vehicles I Can Do a Little Digging on The Ford End and See If I Can Get any Helpful Info. It is So Hard To get a Correct, Good Ecm For a GT-500 Thee Days! I Know! I Have an 07!

Car Won't Start Without PATS Keys Being Reprogrammed as Well!

I Was Working Deep on Locating One For an 07 Awhile Back & Trying To Recall All the Details of The Ecm Codes Etc. on The Gt-500 So Give Me a Bit To get My Old Noodle To Recall it All!

If Possible I Would Like To See Entire ID# Stickers on Both Ecms as Well!

KC
Thanks for your help
vin for donor engine and box is 1ZVHT88S975364166 ECU Catch code NBU5
vin for donor boldly and electrics 1ZVTH88S285161010 ECU catch code SXH1
thanks again
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Old Feb 12, 2026 | 02:45 PM
  #7  
14topgear's Avatar
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Joined: February 11, 2026
Posts: 3
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From: New Zealand
ECU number

Hi the ECU Part number is 7R3A-12A650-AFF
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Old Feb 12, 2026 | 03:28 PM
  #8  
05stangkc's Avatar
Administrator clevparts@aol.com
 
Joined: November 27, 2004
Posts: 12,515
Likes: 4,278
From: Visalia Ca.
UPDATED WITH YOUR VINS! Also Listed All Codes!

Also I Found No Info Indicating Car Was a Super Snake. I Know The Shelby GT's Had a Reference To Different Ecm Programming in Ford Database. Does Not Mean it is Not a Super Snake Simply Means I Found No Reference Where I Have Looked so far!

Of Note Your Car Has Sat Radio Donor Did Not.


Originally Posted by 05stangkc
I Am Not Having Any Luck at The Moment With The Motorcraft Site!

Got it to Work has Same Info!

And is What I Found Elsewhere!

This is From My 07 As-Built!


Tear Tag: NBU5
Vehicle Data:1CFF FFFF FF18



PCM
PCM 1 FFFF FFFF 0310
PCM 2 090D 3DFF FE62
PCM 3 FFFF FFFF FF0E
PCM 4 FFFF FFFF FF0F
PCM 5 FFFF FFFF FF10
PCM 6 FFFF FFFF FF11
PCM 7 FFFF FFFF FF12
PCM 8 FFFF FFFF FF13
PCM 9 FFFF FFFF FF14

Your 2008 CarVIN:1ZVHT88S285161010
Tear Tag: SXH1
Vehicle Data: 11F8 57CE FF2D


PCM PCM 1 FFFF FFFF 0310
PCM 2 090D 3DFF FE62
PCM 3 FFFF FFFF FF0E
PCM 4 FFFF FFFF FF0F
PCM 5 FFFF FFFF FF10
PCM 6 FFFF FFFF FF11
PCM 7 FFFF FFFF FF12
PCM 8 FFFF FFFF FF13
PCM 9 FFFF FFFF FF14

BCE ICM 720-01-01 2087 8000 0050

GEM 726-01-01 206C 0020 03DE
GEM 726-02-01 2323 0000 0076
GEM 726-03-01 0403 0501 003E
GEM 726-04-01 296F 98D5 0037
GEM 726-05-01 296F 9968 00CC
GEM 726-06-01 296A F552 000E
GEM 726-07-01 296F 98D4 0039
GEM 726-08-01 0000 0000 0036

ACM 727-01-01 08C8 D07B E02B
ACM 727-01-02 0031

ACM 727-02-01 1748

SDAR 782-01-01 008B




Your Donor Car Which is a 2007
VIN:1ZVHT88S975364166
Tear Tag: NBU5
Vehicle Data:2001 FFFF FF1E

PCM PCM 1 FFFF FFFF 0310
PCM 2 090D 3DFF FE62
PCM 3 FFFF FFFF FF0E
PCM 4 FFFF FFFF FF0F
PCM 5 FFFF FFFF FF10
PCM 6 FFFF FFFF FF11
PCM 7 FFFF FFFF FF12
PCM 8 FFFF FFFF FF13
PCM 9 FFFF FFFF FF14

BCE ICM 720-01-01 2087 8000 0050

GEM 726-01-01 006C 0020 03BE
GEM 726-02-01 2323 0000 0076
GEM 726-03-01 0403 0501 003E
GEM 726-04-01 28E4 8439 00FB
GEM 726-05-01 28E3 CE4D 0059
GEM 726-06-01 28E4 848C 0050
GEM 726-07-01 28E4 8402 00C7
GEM 726-08-01 0000 0000 0036

ACM 727-01-01 00C8 D07B E023
ACM 727-01-02 0031


ACM 727-02-01 1748
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Old Feb 12, 2026 | 03:51 PM
  #9  
05stangkc's Avatar
Administrator clevparts@aol.com
 
Joined: November 27, 2004
Posts: 12,515
Likes: 4,278
From: Visalia Ca.
Sent Some Info To Your Email!

KC
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Old Feb 12, 2026 | 04:01 PM
  #10  
05stangkc's Avatar
Administrator clevparts@aol.com
 
Joined: November 27, 2004
Posts: 12,515
Likes: 4,278
From: Visalia Ca.
I Don't Suppose You Have The Whole Car The ECM Came From or Access To it if Needed??

KC
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Old Feb 12, 2026 | 04:12 PM
  #11  
tukatz's Avatar
Cobra Member
 
Joined: January 4, 2013
Posts: 1,418
Likes: 118
From: Frisco, TX
Hope you get your issue resolved. We spent 6 weeks in New Zealand with our Morgan and 13 other Morgans from USA, Canada and England. We had a great time.
http://www.tukatz.com/html/travel/ne...4/nz_prep.html
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Old Feb 13, 2026 | 02:25 PM
  #12  
05stangkc's Avatar
Administrator clevparts@aol.com
 
Joined: November 27, 2004
Posts: 12,515
Likes: 4,278
From: Visalia Ca.
While I Have Not Got a Response From My Source I Worked With on The Gt-500 Ecm Search Awhile Back I Did a Google AI & This Seems Very Familiar. If You Were Going To Experiment With the 2007 Ecm I'm Wondering If Using The 2007 As Built Info & VIN For Cluster, Bcm & Ecm Would Get Er Going Or Try & Update To The 2008 As Built & VIN on The 2007 Ecm.

Another Thought Your Initial Question Was Getting The 2007 As Built Which I Would Think Was Already On The Donor ECM. In Which Case an Attempt Could Be Made To Program Pats Keys Using 07 Pcm. Even if Unsuccessful It May Provide Error Data To Continue Course of Action.

Another Issue is I Know There are Some Slight Wiring Changes Under Dash From 07 to 08 Due To Addition of Optional HID Lights & Ambient Lighting. Regardless if Car Equipped Wiring Harnesses Used Are Different. May or May Not Be Issue But Worth Knowing!

Ideally a 2008 Ecm With Same Catchtag Would Be Way To Go But I Do Know How Difficult They are To Locate! Of Course My Ford Parts Cataloging Says The 08 Part Numbers Superceed to 09 Part Numbers Which Would Seem To Indicate a Bit More Cars Out There To Provide a Good Used One. That Supercession Info Was FORD Info Which is The Most Reliable But Not Imperfect!

INFO BELOW IS GOOGLE AI,

So Be Advised!


What tuning differences account for changes between a 2007 and 2008 GT500?
While the 2007 and 2008 Shelby GT500 share the same powertrain, tuning differences between them are primarily found in
emissions calibrations, anti-theft security codes, and minor mechanical refinements that required software adjustments.
Factory Calibration and Performance
In terms of raw output, the standard 2007 and 2008 GT500 are nearly identical, though 2008 saw the introduction of the GT500KR (King of the Road), which featured a more aggressive performance tune.
  • GT500KR Tune: The 2008 GT500KR edition received a specialized performance tune from the factory to accommodate a new cold air intake system, raising output to 540 horsepower compared to the standard 500 horsepower.
  • ABS and Traction Control: The 2008 KR model also featured a unique ABS tune to match its upgraded suspension and handling components.
  • Fuel Economy and Throttle Response: Some aftermarket tuners like TeamJDM note that custom tunes for these years typically focus on improving tip-in throttle response and can offer a minor bump in fuel economy of 1–3 MPG over factory settings.
Mechanical Differences Affecting Tuning
Subtle hardware changes between the years can necessitate different tuning parameters to ensure engine longevity.
  • Crankshaft Pulley Revision: The 2007 model featured a heavy crankshaft pulley that was prone to failure in high-power applications. Ford revised this for the 2008 model year with a different design, which may affect how the ECM monitors engine harmonics or load.
  • Sensor Thresholds: While the hardware is largely the same, individual calibrations for oxygen (O2) sensor monitors and heater thresholds may vary slightly to meet year-specific emissions standards.
Software and Security Interoperability
The most significant "tuning" difference for someone swapping an ECM is not performance-based but relates to the vehicle's unique identity.
  • VIN-Specific Locking: Every ECM is flashed with a specific Vehicle Identification Number (VIN). An '07 ECM will not communicate correctly with an '08 instrument cluster or body control module unless it is reflashed with the target car's VIN.
  • PATS Security: The Passive Anti-Theft System (PATS) codes are unique to the vehicle’s keys and stored within the ECM's software. Swapping modules without a "security relearn" or reprogramming will prevent the car from starting.
Take it With a Grain Of Salt But This is Where I Am As Far As My Helpfulness on Your Gt-500 Challenge!

I Will Add That When I Was Searching For an ECM and Tried Every Source I Could That I Even Reached Out To Old Contacts at FORD I Had From 35 Years at Working at The Dealership Level. Owning an 07 Gt-500 I Was More Than Concerned That I Might Need One Someday.I Won't Go Into Detail But Will Simply State I Was Politely Told They Could Not Help or Just Flat Ignored. Pretty Crappy Deal For FORDS Iconic Car which Can Become Yard Art By Lack Of Availabilty of a Fairly Often Needed Critical Component! The Current Source Being Used Parts Which Barely Ever Become Available after a Car gets Wrecked!

Talked To Many a ECM Supplier and They Say No Go! Can't get Parts Etc!

Hopefully in the Future Things Will Come Around But For Now This is The State of Affairs!

KC
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