Reinstalling a tune vs disconnecting the battery - Ford Mustang Forum
 
LinkBack Thread Tools
post #1 of 4 (permalink) Old 09-03-2010 Thread Starter
PONY Member
S197 Member
 
Mustanglou's Avatar
 
Joined: Mar 2009
Location: Wildwood
Posts: 376
 
Reinstalling a tune vs disconnecting the battery

Is there a difference between re-installing a tune you already have vs. disconnecting the battery to reset the ECU? Are there benefits to resetting the ECU by disconnecting the battery vs reinstalling an existing tune.

For ex. If my RPMs are a little erratic and I reinstall my tune and the problem still exists can resetting the ECU by disconnecting the battery correct the issue?

The tune has been in use for a while with no issues but the RPM issue began after switching back from an 87 tune to a 93 tune.


92 LX
Holly Systemax, Shorty Headers, TFS Stage 1 Cam, TFS FAC 170 Heads, Cobra Transmission, King Cobra Clutch
RWHP 317

2006 Mustang GT
JLT CAI and a Custom Tune
Mustanglou is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 09-03-2010
MACH I Member
4.6L Member
S197 Member
 
redruder's Avatar
 
Joined: Jul 2008
Location: Oahu
Posts: 2,557
 
I prefer to do a reinstall of the tune, but I genrally have my battery disconnected at some point every month due to working on the car anyway.


Forged bottom end, Ported heads, Saleen super charger, 2.8 blower pulley/15psi, Dual stage water to air intercooler, AFCO heat exchanger, battery relocated, Twin GT500 fuel pumps, T-56 trans, Aluminum flywheel, Aluminum driveshaft, 3.73 rear gears, Eaton TruTrac Diff, TA Performance rear end girdle, Racecraft suspension system, UCA, LCA, panhard bar, 15" slotted front rotors w/ 6 piston calipers, Carbon Fiber front splitter/rear diffuser, and bunch of other stuff
RWHP/RWTQ is adequate
redruder is offline  
post #3 of 4 (permalink) Old 09-03-2010
SHELBY GT 500 Member
 
pcfrisch's Avatar
 
Joined: Feb 2005
Location: Southeastern
Posts: 13,191
 
Have you ever cleaned your MAF sensor? That may be your problem.
CRC makes a spray cleaner you can get at auto stores.




AFM Site Administrator
2006 Tungsten Grey Mustang GT Manual.
Alpine H/U with Infinity speakers.
Powerhouse CAI and Tune.
Previous Mustangs:
1978 2.8 L, 1979 5.0, 1982 5.0 "HO", 1986 5.0 GT

Don't wait for tomorrow to look back and wish for today
pcfrisch is offline  
 
post #4 of 4 (permalink) Old 09-03-2010
Jozsefsz
Guest
 
Jozsefsz's Avatar
 
Posts: n/a
Re-installing a tune won't clear the KAM (Keep-Alive-Memory) settings that your computer has learned. I have the Moates QH, and both it (and the Tweecer guides) recommend a battery-disconnect reset of the stock computer when you make changes to fueling so that the car can more rapidly re-learn its settings. There's also a clear-KAM-settings tune that you can create (a single flag in the binary) which you write temporarily, and then over-write with a running tune.
Sponsored Links
Advertisement
 
Closed Thread

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Mustang 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, otherwise you will not receive the necessary confirmation email needed to confirm, validate and activate your new AFM member account.

Failure to provide a VALID email address, will result in the cancellation of your new AFM member account registration.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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
Trackbacks are Off
Pingbacks are Off
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome
 


Search Engine Friendly URLs by vBSEO 3.6.1