Reset Computer ES300
#2
Lexus Fanatic
Re: Reset Computer ES300
Originally posted by dougmiers
Is there any possible way to reset the main ecu on the es300 with out taking the vehicle to the dealer? Help?
Is there any possible way to reset the main ecu on the es300 with out taking the vehicle to the dealer? Help?
or pulling th ECU fuse
oh and welcome to club Lexus
-johnny
#3
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Do those work?? I know they work on my Toyota truck, but wasn't sure on the Lexus and didn't want to cause any undue problems? Glad to be a member of this organization and thanks for the response.
#4
Lexus Connoisseur
Re: Reset Computer ES300
Originally posted by dougmiers
Is there any possible way to reset the main ecu on the es300 with out taking the vehicle to the dealer? Help?
Is there any possible way to reset the main ecu on the es300 with out taking the vehicle to the dealer? Help?
#6
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i believe that the 92-96 es300 is and obd2 so just disconnecting the neg terminal for 15-30sec should reset the ECU. the ecu learns how you drive to provide the right fuel/air/shifting mapping for how you "usually" drive. once you reset it, punch and run the gas wide open to about 80mph. then it will run your mapping wide open. Keep in mind you'll have to do this every once in a while b/c it averages that mapping with typical everyday driving(when your not flooring it). it will run alot better then.
#7
Lexus Connoisseur
Originally posted by MoreMGD32
i believe that the 92-96 es300 is and obd2 so just disconnecting the neg terminal for 15-30sec should reset the ECU. the ecu learns how you drive to provide the right fuel/air/shifting mapping for how you "usually" drive. once you reset it, punch and run the gas wide open to about 80mph. then it will run your mapping wide open. Keep in mind you'll have to do this every once in a while b/c it averages that mapping with typical everyday driving(when your not flooring it). it will run alot better then.
i believe that the 92-96 es300 is and obd2 so just disconnecting the neg terminal for 15-30sec should reset the ECU. the ecu learns how you drive to provide the right fuel/air/shifting mapping for how you "usually" drive. once you reset it, punch and run the gas wide open to about 80mph. then it will run your mapping wide open. Keep in mind you'll have to do this every once in a while b/c it averages that mapping with typical everyday driving(when your not flooring it). it will run alot better then.
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#10
Lexus Fanatic
This is the universal method for all cars (i.e. disconnecting the battery or the ECU fuse). Unless you have a "check engine" light or some other residual problem with the ECU of your car, you shouldn't need to reset the computer.
#12
Lexus Fanatic
I have never tried to test the high speeds out after resetting the ECU, but from what I understand, the computer would have to re-learn and re-adapt to your driving methods. I'm assuming you would notice some hesitation in the engine or transmission after resetting the computer, but I'm sure that will soon go away once the computer has fully communicated with your driving.
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Having a issue with my 97 es 300...
Hi guys , my 97 es 300 is acting crazy .... its burning 89 octane fuel like its water. The check engine light code is reading p0505. What should i do?