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06-12-2018, 10:35 AM | #1 |
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How to restore stock rom to access ecu w/ Techstream
I have an ecu programmed with Ecutek Race Rom features via a Cosworth tune. I am wanting to access the ecu so that I can use a cable and Toyota Techstream to change some of the car's features such as seatbelt warning, chime levels, etc. In order to use Techstream, I must have the Ecutek Race Rom features temporarily removed. With the Cosworth tune, I can only access the ecu with an Ecutek box and Techstream will not run...
I have the stock rom that I backed up originally. How can I temporarily install the stock rom (.romdump) file? Will I be able to flash back to the Cosworth tune after making the changes with Techstream? Will there be any changes to the tuning license/ Dongle ID? Cosworth tune with Race Rom features> Stock Rom > Techstream > Back to Cosworth tune |
06-12-2018, 12:41 PM | #2 |
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Ok looking into it, it looks like my original ROM backup is in the .romdump file format instead of the .bin format. When I originally installed the Cosworth ROM, I attempted to "read ROM" which would generate a .bin file, however Ecutek would not do this at the time, and required me to "dump details for Ecutek". I remember uploading a copy of the original ROM to ecutek. Maybe it's because I had a brand new car and Ecutek had not seen this ROM before.
All I want to do is access the ECU with a cable and Techstream. With the ecutek software loaded into the ECU, Techstream will not recognize the ECU. So I just need to go back to a base ROM, run Techstream and then go back to the Cosworth ROM when I'm done. Ideas? Can I just load one of the compatible maps listed in the ecutek sofware? Will this change my dongle ID? @Matt@Cosworth |
06-12-2018, 02:47 PM | #3 | |
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06-12-2018, 04:58 PM | #4 |
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It's odd that you can't use Techstream but doing what you want is easy. You can't download a usable copy of your original/amy tune in EcuTek from the ECU, only a ROM dump to send to them if they don't have that ID.
What you do have is the base files downloaded by ProECU. Just download a compatible one to the ECU. That should leave the ECU in an unlocked state to some extent I believe.
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06-12-2018, 07:06 PM | #5 |
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Before you flash in stock ecutek rom male sure you have a copy of the tune on your computer from your tuner to restore. Make sure you can open your cosworth rom with your ecutek kit before restoring stok ecutek tom
If techstream wont run at all i think you have other issue ive used techstream to log parameters on my ecutek tuned ecu. I have not tried changing seat belt parameters but if tectstream eont connect at all i think you have setup or conbection problem. Try techstream on amother toyota an see if it connects Ecutek only locks out the engine ecu read\write function all logging should be fine. Seat belt chimes and other body contro features are most likely controlled buy the BIU body intergrated unit totally separate to ecu Last edited by steve99; 06-13-2018 at 12:33 AM. |
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06-13-2018, 09:10 AM | #6 |
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Are you sure the Ecutek tune is the problem?
What hardware do you use with Techstream? I'm Ecutek tuned with RaceRom but use Tactrix with Techstream. I have no problem accessing those function with Techstream. As far as I know, these things have nothing to do with the ECU anyway, you are just accessing it through the same OBD2 port. Another option: You can also change seatbelts etc with the Carrista phone app and a cheap BT ELM327 adapter.
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06-13-2018, 01:37 PM | #7 |
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What @Tor said... I had no trouble using Techstream to communicate with an Ecutek flash. Try verifying your laptop and cable on a friend's car if you can.
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06-13-2018, 06:33 PM | #8 |
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Thanks for the replies. I'll look at it this weekend. I have used this cable in the past but haven't been able to access Techstream with it since I upgraded with the Ecutek. I had assumed it was the Ecutek. Maybe I need a new cable. I'm installing a new ROM this weekend and will try to access the ECU afterwards with Techstream and if it won't I'll try a new cable.
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06-14-2018, 12:29 PM | #9 |
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I'd agree with whats been said
I've used techstream on our ecutek tuned car with no issues I suspect the issue lies elswhere |
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06-14-2018, 12:29 PM | #10 |
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I'd agree with whats been said
I've used techstream on our ecutek tuned car with no issues I suspect the issue lies elswhere |
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