helmetless_stig Posted January 24, 2020 Share Posted January 24, 2020 1999 LS400 with air suspension Codes: P0171, P0715, P0710 Sometimes the cel goes off for a few days but it's been on lately for a while. I know each of these codes alone could have many causes, but maybe someone sees a common source here? Thanks Quote Link to comment Share on other sites More sharing options...
vissine Posted January 24, 2020 Share Posted January 24, 2020 18 minutes ago, helmetless_stig said: 1999 LS400 with air suspension Codes: P0171, P0715, P0710 Sometimes the cel goes off for a few days but it's been on lately for a while. I know each of these codes alone could have many causes, but maybe someone sees a common source here? Thanks What are the names of these codes? Quote Link to comment Share on other sites More sharing options...
helmetless_stig Posted January 24, 2020 Author Share Posted January 24, 2020 2 minutes ago, vissine said: What are the names of these codes? P0171: System too lean Bank 1 P0715: Input/Turbine Shaft speed sensor A circuit P0710: Transmission fluid temperature sensor A circuit Quote Link to comment Share on other sites More sharing options...
vissine Posted January 24, 2020 Share Posted January 24, 2020 1 hour ago, helmetless_stig said: P0171: System too lean Bank 1 P0715: Input/Turbine Shaft speed sensor A circuit P0710: Transmission fluid temperature sensor A circuit I am sure some people here can help you better. But I will suggest to change transmission fluid & filter. Quote Link to comment Share on other sites More sharing options...
sha4000 Posted January 25, 2020 Share Posted January 25, 2020 On 1/23/2020 at 9:19 PM, helmetless_stig said: 1999 LS400 with air suspension Codes: P0171, P0715, P0710 Sometimes the cel goes off for a few days but it's been on lately for a while. I know each of these codes alone could have many causes, but maybe someone sees a common source here? Thanks The most immediate code is the P0710 nd this is what I found on that issue. https://www.clublexus.com/forums/ls-1st-and-2nd-gen-1990-2000/855609-1998-2000-ls400-transmission-temperature-sensor.html Quote Link to comment Share on other sites More sharing options...
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