Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB

- Software Tuning (https://www.ft86club.com/forums/forumdisplay.php?f=88)

- - OFT error, help needed (https://www.ft86club.com/forums/showthread.php?t=98810)

Quote:

Originally Posted by shaynek (Post 2479478)

happens to me all the time. what i do is unplug oft and then plug it back in to flash.

Thanks, your car can't start also when that error happens to you?

Finally I found out the problem today. Voltage was lowered while OFT flashing the file into the ECU. First time flashing shows completed but actually not. Then I tried to start my car, car won't start because file was incomplete and voltage was too low. The voltage was too low when I tried second and third times to flashing the ECU, so OFT shows error. Today I tried to charging the battery and then car started. I flashed stg2 uel 93oct into the ECU and it worked.

Big thanks to @FRSBRZGT86FAN and @steve99 helped me finding the problem out.

Quote:

Originally Posted by xiayu0320 (Post 2479481)

Thanks, your car can't start also when that error happens to you?

I never tried to start my car but i may have a bad battery as well

Quote:

Originally Posted by steve99 (Post 2479013)

If you have used incorrect def file to edit it likely written a corrupt rom to ecu.

Use the oft to write bact the Original File to the ecu the one in the top slot.

if it still wont write try this

Switch off ignition
Remove positive battery terminal
With battery disconnected, depress brake pedal to bleed off and redidual power
Replace battery terminal
Flash your original tune to car on first turn on of ignition

Ie plug in oft turn ignition on go to write , wtite original tune without turning ignition off even if oft asks you to.

After that i think you got big problem, contact the oft guys.

With the time and effort you are putting into the community you need to start charging people :). Not kidding, I am serious. We understand that you are passionate but you have saved the A$$ of hundreds of folks here and I am sure they would wish to thank you for it.
I totally suggest setting up a donation account. Again not kidding... If others approve this please like/thank the post :) and if you get ten likes/thanks then you setup an account :)