Search



Go Back   MustangForums.com > Ford Mustang Tech > 2005 - 2014 Mustangs > GT S197 General Discussion
Sign in using an external account
Register Forgot Password?
Search

GT S197 General Discussion This section is for technical discussions pertaining specifically to the V8 variation of the 2005 and newer Ford Mustang.

Welcome to Mustang Forums!
Welcome to Mustang Forums.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
 
Thread Tools Search this Thread
Old 04-19-2010, 05:08 PM   #1
ShaneM
5th Gear Member

 
ShaneM's Avatar
 
Join Date: Jun 2009
Vehicle: 2012 CO Boss 302 #0333
Location: Texas
Posts: 2,397
Default Car still in shop, ECM is bad it seems

So i mentioned last week that the gauges on my car started going all wonky all the sudden. speedo would stop working, then come back on later, trip computer would tell me i was out of gas even though the tank was full and whatnot. Took the car to local dealer, bunch of tools wanted to re flash the ECU to stock and send me home.

Took it to a roush dealer and they have spent the last 4 days trying to diagnose the problem. boils down to the ECU has gone bad in the car. Apparently has nothing to do with the blower or the install, it just happened to go bad right after. this is why the car was perfect Friday and Saturday last week then went crazy Sunday.

anyway, we shall see how this whole warranty thing with Roush works out. the dealer is telling me the challenge at this point it figuring out who will pay for the new ECU. ford could say the Roush flash caused the issue and Roush could say the Ford ECU was bad leaving me stuck with no help. The dealer says he has never in all the years they have been a roush dealer seen this happen, but he was warning me.

roush actually had him call me and ask if i had reflashed the ECM with an aftermarket tune, which i have not. didn't have the car a good 2 days with the blower before the gauges went wonky. anyway, looks like it will be the middle of next week before i get the car back again. Sucks! New blown GT i haven't been able to drive for half the time i have owned it over one issue or another. and i am still fighting with the dealer on the damn louvers. Lol... it's a damn good thing I really love my car or I would be really mad after all of this.
This ad is not displayed to registered or logged-in members.
Register your free account today and become a member on Mustang Forums!
__________________
2012 Boss 302 Competition Orange with Recaros #0333

ShaneM is offline   Reply With Quote
Old 04-19-2010, 06:21 PM   #2
cidsamuth
2nd Gear Member

 
Join Date: Feb 2010
Vehicle: 2011 Mustang GT 6-speed
Location: Virginia
Posts: 463
Default

Man, this brings up an interesting question: Does re-flashing the computer put you at higher risk for something like this? It wouldn't seem so, given how many times these things get reflashed with tune updates from the dealer or from the tuners. How many folks have bought an SCT tuner with 3 custom tunes and regularly gone back and forth between the tunes?
cidsamuth is offline   Reply With Quote
Old 04-19-2010, 06:31 PM   #3
dmhines
5th Gear Member
 
dmhines's Avatar
 
Join Date: Aug 2006
Vehicle: 2012 Mustang GT
Location: Cumming, GA
Posts: 2,460
Default

That sucks. I'm guessing Roush is gonna have to replace it since they altered it from factory. Could be a sloppy install or static that made it crap out too. It sucks that Roush makes you remove, ship and reinstall ECM instead of using a programmer like FRPP.
__________________
2012 Kona Blue GT ,Stone Cloth (originally Leather), Navigation w/ Camera, Glass Roof, HID and Security, Comfort Package, Brembo's , 6MT and 3.73 Gears

MODS: Boss 302 front end, CS fogs, JLT CAI, JL Audio Sub and Amp, Roush Springs, 2013 Cluster & Pony Puddles, 401A Dash
dmhines is offline   Reply With Quote
Old 04-19-2010, 06:34 PM   #4
ShaneM
5th Gear Member

 
ShaneM's Avatar
 
Join Date: Jun 2009
Vehicle: 2012 CO Boss 302 #0333
Location: Texas
Posts: 2,397
Default

Yeah it does suck. the dealer says there is no indication it had anything to do with the blower or the install. Everything on that looks fine. He said some parts just break and it could have done it without the blower just as easy. with those things just sitting under the hood, i bet they are well insulated against water, shocks and heat.
__________________
2012 Boss 302 Competition Orange with Recaros #0333

ShaneM is offline   Reply With Quote
Old 04-19-2010, 06:48 PM   #5
BAKnBLK2010
1st Gear Member
 
Join Date: Jan 2010
Vehicle: 2010 Ford Mustang GT Premium
Location: Kentucky
Posts: 132
Default

Sounds more like a bad gauge cluster and not the computer to me. They have a test they can run on the cluster to see if it is bad or not. Have they done the test on the cluster??? I just went thru this same thing on my work truck (2008 International Paystar). The truck ran fine just screwed up gauge cluster. They replaced the cluster and now all is good.
__________________
2011 Mustang GT 6 Speed Manual, BBR Tune, Lethal Off Road X Pipe
BAKnBLK2010 is offline   Reply With Quote
Old 04-19-2010, 07:33 PM   #6
ShaneM
5th Gear Member

 
ShaneM's Avatar
 
Join Date: Jun 2009
Vehicle: 2012 CO Boss 302 #0333
Location: Texas
Posts: 2,397
Default

Quote:
Originally Posted by BAKnBLK2010 View Post
Sounds more like a bad gauge cluster and not the computer to me. They have a test they can run on the cluster to see if it is bad or not. Have they done the test on the cluster??? I just went thru this same thing on my work truck (2008 International Paystar). The truck ran fine just screwed up gauge cluster. They replaced the cluster and now all is good.
Yeah all the error codes are for gauges only and all say they can;t communicate with the ECM. they tried to flash to ford stock so they could send it to roush assuming it was a bad flash there. The ECM refused to allow any of the ford programmers to access the system or something to that effect. The basically got an error when they tried to flash teh ECM saying the ecm wasn't recognized. These guys are a roush dealer, presumably they know what they are doing.
__________________
2012 Boss 302 Competition Orange with Recaros #0333

ShaneM is offline   Reply With Quote
Old 04-19-2010, 07:50 PM   #7
dmhines
5th Gear Member
 
dmhines's Avatar
 
Join Date: Aug 2006
Vehicle: 2012 Mustang GT
Location: Cumming, GA
Posts: 2,460
Default

So car runs fine and just cluster has issues? Bizzarre.
__________________
2012 Kona Blue GT ,Stone Cloth (originally Leather), Navigation w/ Camera, Glass Roof, HID and Security, Comfort Package, Brembo's , 6MT and 3.73 Gears

MODS: Boss 302 front end, CS fogs, JLT CAI, JL Audio Sub and Amp, Roush Springs, 2013 Cluster & Pony Puddles, 401A Dash
dmhines is offline   Reply With Quote
Old 04-19-2010, 08:47 PM   #8
ShaneM
5th Gear Member

 
ShaneM's Avatar
 
Join Date: Jun 2009
Vehicle: 2012 CO Boss 302 #0333
Location: Texas
Posts: 2,397
Default

Quote:
Originally Posted by dmhines View Post
So car runs fine and just cluster has issues? Bizzarre.
Yep it runs just fine. Just the gauge issue.
__________________
2012 Boss 302 Competition Orange with Recaros #0333

ShaneM is offline   Reply With Quote
Old 04-20-2010, 07:54 AM   #9
bingo2
1st Gear Member
 
Join Date: Aug 2009
Vehicle: 2010 GT, Candy Red Metallic
Location: California
Posts: 130
Default

Shane, you mentioned you've only been able to drive the car about half the time you've owned it. What other issues have you had?

Regarding the PCM; probably just some bad luck for you and nothing to do with the recalibration. I used to switch between Tillman and Brenspeed tunes almost weekly with the SCT and it had no effect whatsoever on the PCM, it's just a computer. I've been building computers since the IBM PC first hit the market, sometimes you get a bad part from the manufactuer, it's just the way it is.

The only issue I've had with my car was a bad water pump from the factory; it was fixed promptly under warranty.
__________________
M90 ROUSHCharger, ROUSH Stage3 Suspension, GT500 Brakes, SS Brake Lines, Hawk HPS Pads, J&M Panhard, BMR LCAs, MM Caster/Camber Plates, MGW Shifter
bingo2 is offline   Reply With Quote
Old 04-20-2010, 12:23 PM   #10
BruceH
5th Gear Member

 
Join Date: Jul 2008
Vehicle: ......
Location: ......
Posts: 2,057
Default

Gauges acting possesed is usually a bad battery or alternator. IIRC the Roush install requires some hacking of the alternator. IF the installer didn't protect the alternator during modification it is quite possible for metal dust and fragments to get inside and kill it.
__________________
.........
BruceH is offline   Reply With Quote
Old 04-20-2010, 12:23 PM
MustangForums
Ford Mustang




Paid Advertisement

 
 
 
Reply

Tags
08, 2011, automobile, bad, bench, code, control, ecm, ecms, ecu, engine, factory, find, ford, module, mustang, shipecmcom, sign, test

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 Off

Forum Jump

Advertising

Featured Sponsors
Vendor Directory
New Sponsors
All times are GMT -5. The time now is 09:01 AM.

© Internet Brands, Inc.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.

This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company
Emails Backup