'01 RX300 196k
I've been reading this for years, but just joined. I'm not a mechanic, this error code reading came from Auto Zone, I bought this RX300 in '02 to start a family with & now don't have the heart to get rid of it. But, my mechanic told me a while ago to stop pouring money into it, it's not worth it. But, I'm trying to hold on to it.

So, I hope to get some advice. This car runs rough, is sputtering (as though a finger's over the fuel line for a fraction of a sec to up to 3-4 secs), especially on the highway when I take my foot off the gas. It pings (so I switched to 89 gas which helped a little), and the brakes also lose power when the engine light flashes during this sputtering. However, the problem went away once I disconnected the battery & let the computer reset. But, after a few days, the engine light came back on & the symptoms resumed. It has a new battery, new air filter, new oil change & the temp is normal. I'm wondering if it makes sense to just change the bank 1 Solenoid, if it seems that's it's likely much bigger than that, or if I'm just about out of luck.

Thanks in advance!

Chris

 

Welcome.
Lets tackle these codes one at a time.
You’re on the right track replacing Bank 1 OCV.
This will rid of the misfires on 1-3-5.
Unless there are other issues.

Those evap codes though could be anything.
I had a 446 code and i ended up replacing the charcoal canister.