Car won't start after OFT flashing - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

ap5512 · 12-19-2017, 10:07 PM

So I'm taking my car back to stock by removing the headers and axle back exhaust. I have the Stage 2 OFT tune so wanted to revert back to the Stage 1. Here is what happened next:

1. Accidentally flashed back to stock tune (wanted to do Stage 1)

2. Once the stock tune was finished writing successfully I went back in the OFT and flashed to the Stage 1.

3. Stage 1 completes and I get the message to turn off car and then turn on car completely and run for 45 secs as usual.

4. Car won't turn over/start...I can hear a klacking type noise like it's wants to start but doesn't. The lights in the car all start going off/on and stereo resets etc.

So not sure what happened since I didn't get any error messages during the flash. I did not mess with anything during the flash process but I did notice the phone that was outside the car did pair up with the car.

I tried flashing the car again but now I'm getting a message that says it failed to write tune.

I'm worried I bricked the ECU but hoping that's not the case...any tips to save the car is appreciated.

staktuning · 12-19-2017, 11:34 PM

Did you check the battery? Sounds like low battery voltage to me. If you bricked your ECU you wouldn't hear anything

steve99 · 12-19-2017, 11:57 PM

As above guy said check battery volts.

Most flash devices including oft will refuse to read or write if bat volts low anything less than 12 v usually indicates problems

If oft will read vin or ecu info or log data ecu is fine.

As above if ecu was bricked it wont do anything no clicks nothing

Also read here

http://www.ft86club.com/forums/showthread.php?t=99171

.

jasonojordan · 12-20-2017, 07:56 AM

Sounds like dead/low bat.

ap5512 · 12-20-2017, 11:29 AM

Alright, I'll try jumping the car and see if that does the trick. Thanks for the inputs everyone. I figured since the lights were coming on and off that the battery was probably not the culprit. I'll report back in a little while. THanks!

Tcoat · 12-20-2017, 01:53 PM

Quote:

Originally Posted by ap5512

Alright, I'll try jumping the car and see if that does the trick. Thanks for the inputs everyone. I figured since the lights were coming on and off that the battery was probably not the culprit. I'll report back in a little while. THanks!

The lights require far less power than the starter motor. When you try to start it and the lights go off it is because what little juice is left in the battery is being used to try and turn over the engine.

ap5512 · 12-20-2017, 03:16 PM

Thanks everyone....the car started up once i gave it a jump.

12-19-2017, 10:07 PM	#1
ap5512 Senior Member Join Date: Nov 2011 Drives: 2013 SWP BRZ Location: NoVA Posts: 532 Thanks: 241 Thanked 142 Times in 97 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	Car won't start after OFT flashing So I'm taking my car back to stock by removing the headers and axle back exhaust. I have the Stage 2 OFT tune so wanted to revert back to the Stage 1. Here is what happened next: 1. Accidentally flashed back to stock tune (wanted to do Stage 1) 2. Once the stock tune was finished writing successfully I went back in the OFT and flashed to the Stage 1. 3. Stage 1 completes and I get the message to turn off car and then turn on car completely and run for 45 secs as usual. 4. Car won't turn over/start...I can hear a klacking type noise like it's wants to start but doesn't. The lights in the car all start going off/on and stereo resets etc. So not sure what happened since I didn't get any error messages during the flash. I did not mess with anything during the flash process but I did notice the phone that was outside the car did pair up with the car. I tried flashing the car again but now I'm getting a message that says it failed to write tune. I'm worried I bricked the ECU but hoping that's not the case...any tips to save the car is appreciated. __________________ "Don't be a don'ter, do be a doer" - Johnny Wu

12-20-2017, 11:29 AM	#5
ap5512 Senior Member Join Date: Nov 2011 Drives: 2013 SWP BRZ Location: NoVA Posts: 532 Thanks: 241 Thanked 142 Times in 97 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	Alright, I'll try jumping the car and see if that does the trick. Thanks for the inputs everyone. I figured since the lights were coming on and off that the battery was probably not the culprit. I'll report back in a little while. THanks! __________________ "Don't be a don'ter, do be a doer" - Johnny Wu

12-20-2017, 03:16 PM	#7
ap5512 Senior Member Join Date: Nov 2011 Drives: 2013 SWP BRZ Location: NoVA Posts: 532 Thanks: 241 Thanked 142 Times in 97 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	Thanks everyone....the car started up once i gave it a jump. __________________ "Don't be a don'ter, do be a doer" - Johnny Wu

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12-19-2017, 11:34 PM	#2
staktuning Junior Member Join Date: Dec 2017 Drives: 2017 Brz & 2010 C63 AMG Location: Winter Park, FL Posts: 3 Thanks: 0 Thanked 2 Times in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Did you check the battery? Sounds like low battery voltage to me. If you bricked your ECU you wouldn't hear anything

12-19-2017, 11:57 PM	#3
steve99 Banned Join Date: Dec 2013 Drives: FT86 Location: Australia Posts: 7,998 Thanks: 1,035 Thanked 4,987 Times in 2,981 Posts Mentioned: 598 Post(s) Tagged: 2 Thread(s)	As above guy said check battery volts. Most flash devices including oft will refuse to read or write if bat volts low anything less than 12 v usually indicates problems If oft will read vin or ecu info or log data ecu is fine. As above if ecu was bricked it wont do anything no clicks nothing Also read here http://www.ft86club.com/forums/showthread.php?t=99171 .

12-20-2017, 07:56 AM	#4
jasonojordan Senior Member Join Date: Jul 2013 Drives: 2013 satin white brz limited Location: Cottage Grove MN Posts: 1,049 Thanks: 162 Thanked 511 Times in 326 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	Sounds like dead/low bat.

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