- Yeah, finally pulled my codes and it reads: 0510 and 0707. The Haynes manual says that those codes mean:
- 0510 : Downstream O2 sensor maximum voltage monitor fault
- 0707 : Downstream O2 sensor circuit slow response fault

- Would I fix the problem buy replacing the sensors or is the problem somewhere else? I'm about to order some sensors from www.oxygensensors.com, but before I do, I just wanna make sure whether the problem will be fixed by just replacing the sensors!!

Thanks in advance!

- Boz

 

It's the sensors!
It's actually just the rear (downstream) sensor I believe.

 

I had the same codes and I replaced them both (I have 2 downstream O2 sensors, CA emissions). My car has 115k and I'm replacing the other 2 as well. I spent $377 for these 4 sensors.
It is recommended to replace them around 100k anyway.
Good luck.