Disable PATS and replace ECU without reprogramming? - Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum > Ford Focus Tech Discussions > Focus Tuning Chat

Focus Tuning Chat Discuss performance tuning options for your Ford Focus.

Search This Forum | Image Search | Advanced Search    
Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 10-03-2011, 05:14 PM   #1
JD_Hupp
Focus Enthusiast
 
Join Date: Feb 2011
Fan#: 83431
Location: South Bend, IN
What I Drive: 2002 White LX

Posts: 62
Points 546, Level 10
Points: 546, Level: 10 Points: 546, Level: 10 Points: 546, Level: 10
Level Up 92% Completed
Level up: 92% Level up: 92% Level up: 92%
Forum Activity 2%
Activity: 2% Activity: 2% Activity: 2%
FF Reputation: 1 JD_Hupp Good Standing Member
Buy-Sell-Trade Rating: (0)
Disable PATS and replace ECU without reprogramming?

For my 2002 Focus LX automatic with 80,000 miles, I replaced my ECU with a used one ($50 at eBay) to troubleshoot a tranny problem, but then I had to pay the dealer almost $300 to copy information out of my old ECU and write it into the replacement. (Though that also included $30 to program a second key.) Then the replacement ECU developed the same problem indication as the old one (a short).

So after I figure out what's causing the short, I'm staring at the prospect of replacing and reprogramming the ECU again.

Once the replacement ECU was installed, the car wouldn't even start until it had been reprogrammed, and I understand that this was due to the PATS.

Can I disable the PATS and use a replacement ECU without reprogramming it? In other words, is the programming only needed to set up the key/PATS info?


JD_Hupp is offline  
    Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 10-03-2011, 08:19 PM   #2
1turbofocus
FF Affiliate
 
1turbofocus's Avatar
 
Join Date: Oct 2003
Fan#: 1123
Location: Belmont, NC
What I Drive: 2000 ZX3 / 2002 SVT Turbocharged

Posts: 22,176
Points 51,259, Level 100
Points: 51,259, Level: 100 Points: 51,259, Level: 100 Points: 51,259, Level: 100
Level Up 0% Completed
Level up: 0% Level up: 0% Level up: 0%
Forum Activity 22%
Activity: 22% Activity: 22% Activity: 22%
FF Reputation: 154 1turbofocus Excellent Standing Member 1turbofocus Excellent Standing Member
Buy-Sell-Trade Rating: (28)
I have a way to bench flash but depending on your ECU code most PATS switches dont work in the SCT tuning sofftware and by the time you bought a flasher and shipping (399.00 and 20.00 shipping) it would be cheaper to have Ford do it

If you get the correct ECU they wouldnt charge you anything but the key/pats , There is a code on the ECU that tells what ECU it is and what ECU you have to use it cant just be for a 2002 Focus ECU

Tom
__________________
Focus-Power: Your #1 Source for Ford Focus Speed, Tuning & Performance!

Customer Support
AIM: hpdyno
Email: hpdyno@aol.com
Phone: 704-249-3745
Site: focus-power.com

Elder 1turbofocus
1turbofocus is online now  
    Reply With Quote Quick reply to this message
Old 10-19-2011, 02:53 PM   #3
PStroked444
Focus Enthusiast
 
PStroked444's Avatar
 
Join Date: Feb 2011
Fan#: 83309
Location: Sierravista, AZ
What I Drive: 03, Silver, 2.3L, ATX, 4dr,

Posts: 77
FF Reputation: 1 PStroked444 Good Standing Member
Buy-Sell-Trade Rating: (0)
I dig this post up cause I am curiouse. (sp) So, if I get a ECU same code and same "bin" example (3s4A-12A650-AAC) I wont have to get the keys flashed. Or whatever the process is for changing an ECU out? Or can you explain how the process works in simple terms for me. Thanks!!



CJ
__________________
Take time to think it through... Because your next thought might be put to action.
PStroked444 is offline  
    Reply With Quote Quick reply to this message
Reply

Bookmarks & Social Networks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 10:34 PM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Privacy Policy : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Audi S3, Ford Fusion and Acura TLX. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area. Challenger Hellcat - Charger Hellcat