A tip. When asking questions about the Solara it's best to mention the year and sometimes the model. There are huge differences between the generation I and generation II models.
To try and answer your question, there is no err1 code (unless the code reader you're using drops the zeros.) The closest is code P0100 which indicates a Mass or Volume Air Flow Circuit Malfunction.
Cheers
Trouble code P0420 means:Catalyst system efficiency below threshold
what should i do for code Po441 for 1999 toyota camry?
Code P0135 indicates a malfunction in the oxygen sensor circuit for the upstream (bank 1) sensor on a 1999 Toyota Camry Solara. To repair this issue, start by inspecting the wiring and connectors for any damage or corrosion. If the wiring appears intact, you may need to replace the upstream oxygen sensor itself. After replacement, clear the error code and test drive the vehicle to ensure the issue is resolved.
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O2 sensor
code p 0446
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Post your code here.
Trouble code P0773 means:Shift solenoid E electrical
Trouble code P0770 means:Shift solenoid E malfunction
Under the drivers side of the dash.