How do you change out a faulty ECU and put in another in a Lexus es300 1994 model?

Tiny
LARRYYARB
  • MEMBER
  • 1995 LEXUS ES
  • 143,000 MILES
I need some step by step instructions how to do this. I bought a used one and need help installing it in my car please.
Wednesday, February 29th, 2012 AT 11:58 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lets just hope that it will work-disconnect the battery, remove the wiring connectors on the computer-replace it-hook battery back up-if you encounter problems -could be the computer is going thru a relearning process due to battery disconnection
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Thursday, March 1st, 2012 AT 12:28 AM

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