07 Rx350 - Code P2195 and C1201

[TheRealChachi]

Is this something I can troubleshoot or something SpeeDee can?  

[RX400h]

8 hours ago, TheRealChachi said:

Is this something I can troubleshoot or something SpeeDee can?  

Quote

Code P2195 indicates an issue with the oxygen air/fuel sensor signal being stuck lean on Bank 1 Sensor 1. This means the oxygen sensor before the catalytic converter is detecting a lean air/fuel mixture. Common causes include a faulty oxygen sensor, vacuum leaks, fuel delivery issues, or wiring problems. To fix it, you'll need to diagnose the exact cause using a scan tool, inspect the oxygen sensor and its wiring, check for vacuum leaks, and ensure the fuel delivery system is working properly.

Code C1201 indicates an engine control system malfunction. This code often appears alongside other codes, so it's important to check for additional trouble codes. Common causes include faulty sensors (like the oxygen sensor), wiring issues, or a malfunctioning engine control module (ECM). Fixing it involves diagnosing the specific cause, inspecting sensors and wiring, and potentially replacing faulty components

 

[TheRealChachi]

@RX400h

Are O2 sensors the same as Air Fuel sensors?  what part#s would i looks for if i were to go to autozone to purchase one? or even amazon. 

I forgot to mention it has 187,502miles.  

[RX400h]

On 12/8/2024 at 1:55 PM, TheRealChachi said:

@RX400h

Are O2 sensors the same as Air Fuel sensors?  what part#s would i looks for if i were to go to autozone to purchase one? or even amazon. 

I forgot to mention it has 187,502miles.  

The 2007 Lexus RX350 has four oxygen (O2) sensors. There are two sensors located before the catalytic converters (known as "upstream" sensors) and two sensors located after the catalytic converters (known as "downstream" sensors). These sensors help monitor and adjust the air-fuel mixture for optimal engine performance and emissions control.

Here are a few oem parts suppliers:

lexusparts.com

oempartsonline

parts.lexus.com