Check Engine Light

[mesa 33]

Check engine light came on today. Its another 02 sensor. Computer reads E0133 02 sensor Bank 1 Slow Response. Is this anything to really worry about? I was planning on just getting the computer reset if anything at all.

 

[Runnin'OnEmpty]

Slow response almost always indicates an O2 sensor going bad or 'wearing out'. That P0133 code is for the Bank 1 sensor 1 location, which is the upstream sensor on the passenger side. I'd simply replace it. It'll run better and get better mpg with a new one.....

ROE

 

[mesa 33]

Thanks for the help ill prolly get one this week.

 

[mesa 33]

Does anybody know where exactly this o2 sensor is? code P0133. Runnin said its on the upstream pass side. Is that where the exhaust meets the engine? i think i found it but im not sure.

 

[Runnin'OnEmpty]

Mesa, you've probably found it. Bank 1 is the passenger side, and sensor 1 is the sensor that's closest to the exhaust manifold. (Sensor 2 for instance, would be further back). If it's like mine, the B1S1 is hard to reach, and it may be easier to remove the plastic wheel well to access it.....

Good luck,
ROE