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91 Es250 Ecm

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Old Jun 13, 2018 | 06:50 PM
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Default 91 Es250 Ecm

Hello, its been quite a while since I have been here, but I need to see if anyone knows where the ecm is located on my 91 ES? I have tried to find the info on Google and here with no luck.
thank you
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Old Jun 13, 2018 | 07:04 PM
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Inside the car direct center by the firewall. Pull the carpet back on both sides you'll see it, held in by two 10mm bolts.
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Old Jun 13, 2018 | 07:11 PM
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Hi Lex91,

I would assume that it is in the same location as the 1988 - 1991 Camry, which is under the dash in the middle section.

Here are some instructions from a Toyota forum on how to get to it:
http://www.toyotanation.com/forum/10...l#post10768937

Here is a diagram:



Here is another diagram:


Hope this helps.

EDIT: Confirmed by Lexus2000's post.
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Old Jun 13, 2018 | 07:15 PM
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I found it thank you!
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Old Jun 13, 2018 | 07:26 PM
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Why do you want to remove it?
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Old Jun 13, 2018 | 07:31 PM
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Well, because of the weird things the car is doing that would have pointed to a tune up or o2 sensor but everything has been replaced which leads me to believe that the computer might be going out.
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Old Jun 13, 2018 | 07:37 PM
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I've never seen one go bad but it is possible. Oddly enough the ES250 ECU is not the same part number as used in the Camry.
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Old Jun 13, 2018 | 07:50 PM
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From what I read its possible but Im not sure what else it could be so I have to start there i guess. I did find one on eBay for 34.00 tho
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