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Car still in shop, ECM is bad it seems

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Old 04-19-2010, 05:08 PM   #1
ShaneM
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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.
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Old 04-19-2010, 06:21 PM   #2
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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?
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Old 04-19-2010, 06:31 PM   #3
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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.
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Old 04-19-2010, 06:34 PM   #4
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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.
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Old 04-19-2010, 06:48 PM   #5
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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.
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Old 04-19-2010, 07:33 PM   #6
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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.
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Old 04-19-2010, 07:50 PM   #7
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So car runs fine and just cluster has issues? Bizzarre.
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Old 04-19-2010, 08:47 PM   #8
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So car runs fine and just cluster has issues? Bizzarre.
Yep it runs just fine. Just the gauge issue.
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Old 04-20-2010, 07:54 AM   #9
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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.
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Old 04-20-2010, 12:23 PM   #10
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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.
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Old 04-20-2010, 05:49 PM   #11
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The problems weren't all with the car mechanically. The longest delay was the stripe debacle. That took two weeks combined to get right. The week after that it went in for the blower. The ECM was ba d and ford is replacing it under warranty. Had nothing to do with the roush flash it seems.
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Old 04-24-2010, 10:06 AM   #12
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So Wednesday I called the dealer fixing my car again to ask them an unrelated question. they told me my ECM had came in that day. i was all pumped because if they sent it out that day to roush i could have had it back Friday.

I called yesterday and they hadn;t sent the thing out yet. i guess it took them a few days to program it for whatever reason. They were supposed to send it out yesterday so I should have the car back Wednesday or so. Assuming they sent the ECm like they said. If i have to put this thing in the shop one more time and its gone for a week I think I'll lose my mind.
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Old 04-24-2010, 10:16 AM   #13
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Sometimes I wish I stuck with a normal car that I only cared about it as transportation -- the emotional energy cost has been high since buying my Mustang.

After seeing your thread when you were waiting on the SC install, and now this, I can imagine you have some serious bags under your eyes.
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Old 04-24-2010, 10:49 AM   #14
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Quote:
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Sometimes I wish I stuck with a normal car that I only cared about it as transportation -- the emotional energy cost has been high since buying my Mustang.

After seeing your thread when you were waiting on the SC install, and now this, I can imagine you have some serious bags under your eyes.
I'm just glad it's been nothing major. most of the issues i have had were to to crap workmanship on visual mods like the stripes and louvers. The ECM is driving me crazy though lol. I am glad i did the blower, still no regrets and i am sitting here this very minute looking at what mods i will do next. I am very anxious to get the car back. i did finally get to launch the car hard before the gauges went wonky. Oodles of wheel hop but the damn thing pulls like crazy with the 3.73 gears. The ripply pavement certainly didn't help, nor the stock rubber. i am hoping new wheels and rubber will help some, but after that i have suspension plans. i am leaning towards those gun metal shelby redlines with nt05's in 295/35-18 back and 275/40-18 front.

I'm thinking koni yellows, steeda sport sprints, adj panhard, and steeda HD camber caster plates to start with. Once i lowered my 05 wheel hop wasn't an issue any more. That said, i have more than 100 extra HP here and about a 1000 less pounds than that vert. i was really leaning towards that roush kit, but Sam Strano realyl recommends the other setup and he knows his stuff. i understand the yellows on full soft are basically the strt konis lots of you run and they are supposed to be good ride wise. Have any of you ridden in a car with the roush suspension and one with a similar set up to what i mention by chance? I am worried the ride will be trashed, I refuse to have a crap ride liek the tokino blues and eibach sports gave my vert.
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Old 04-24-2010, 11:22 AM   #15
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I drove a 2010 Roush 427R this past week several times. I was actually impressed with how well it rode. Handled good, rode good and when i really got on it hard it behaved well and took off.
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Old 04-24-2010, 11:22 AM
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