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Toyota Celica GT4 Toyota Celica GT4

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Old 09-01-2004, 03:05 AM   #1
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Toyota Celica GT4
Hi!

Is there any way to extract some information from the ECU of a 1990 Toyota Celica GT4?
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Old 09-01-2004, 12:09 PM   #2
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Quote: Originally Posted by beck
Hi!

Is there any way to extract some information from the ECU of a 1990 Toyota Celica GT4?


, always wanted to do this
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Old 09-01-2004, 12:11 PM   #3
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Seriously...this thread should answer your question:http://www.mp3car.com/vbulletin/engine-management-obd-ii-engine-diagnostics-etc/18656-what-obd-ii.html
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Old 09-02-2004, 07:32 AM   #4
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Uups, I stepped on some bodies toes here I think!

I have searched and got one hit which didn't give me any good answers!
Secondly, yes I have read the intro which says that all cars after 1 January 1996 but seriously that doesn't answer my question. Is there any way I can get any info out of that car, not only with OBD-II
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Old 09-02-2004, 08:34 AM   #5
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The easiest way to get information out your car is to buy a new car that supports OBD II.

http://www.mp3car.com/vbulletin/engine-management-obd-ii-engine-diagnostics-etc/19570-obd1-options-solutions-please.html
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Old 09-02-2004, 03:57 PM   #6
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No there is not easy way. I had an '91 MR2 and although there is some kind of system (cannot remember what it is right now) it's not standard. Not even OBDII. If you want to pursue further might be better to ask in a Toyota forum, that's how I found out mine IIRC.

If you don't want to buy a new car you could look into attaching sensors for what you want to read off (You need Mass air flow, speed and fuel trim for MPG for example) though once again you will have to search and research what you need and write custom software for it.
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Old 09-16-2004, 06:32 AM   #7
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Hey beck, email me at coyoteboyuk (*) hotmail.com or add me on MSN, I'll tell you how to get all the possible info you can out of your GT4

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Old 09-20-2004, 12:59 AM   #8
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I may be mistaken but I'm pretty sure you should have no problems getting OBD-II info from your Celica. I have a Corolla 04, that I have had no problems extracting info from. I have the scantool.net kit!

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Old 09-20-2004, 04:28 AM   #9
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yup, you would be mistaken Its a '90. No OBD stuff, all done by shorting two contacts under the bonnet and reading off flashing codes from the check engine light.

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Old 09-29-2005, 11:10 AM   #10
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I'd like to know to how to get more info from my 1991 MR2
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Old 09-29-2005, 11:48 AM   #11
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Again, no OBD stuff on the 91 MR2. AFAIK the celica and MR2 run on the same ECUs right up to '98 celicas. After that we go OBD2 if im not mistaken.
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