How do you change out a faulty ecu and put in another in a lexus es300 1994 model?

1995 LEXUS ES
143,000 MILES
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LARRYYARB
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  • 25 POSTS
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.
Feb 29, 2012 at 11:58 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
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
Mar 1, 2012 at 12:28 AM
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