cdhutch

Thanks for the response.

Hello, I am a newbie to the forum. I have a 2001 GS 300, which seems underpowered. The car idles rough and shifting is delayed as the car accelerates--I believe because there is a mismatch between what the computer measures as the engine power and what it expects based upon throttle position and RPM. Like microsup, I too have P0171 and P0174 codes (System Too Lean Banks 1 & 2). I also have a pending P0150 code (O2 Sensor Circuit Malfunction Bank 2 Sensor 1). I do not have a VSC Off Light. I am not mechanically inclined so will be bringing this to someone else for a repair. Is there any other troubleshooting I should do before bringing this to my local mechanic--do these repairs tend to be simple enough that I don't need to spends lots of money at the Lexus dealer? Thank you, Craig

Gordonw, Based upon your experience with Techinfo.toyota.com, can someone go online to download the manuals to his own computer or is it information that can only be accessed "real-time" via a portal and subject to the subscription constraints? Thank you, Craig