Codes P0131 and P0135

[ikessky]

I had AutoZone scan the car and these codes came up, both relating to the O2 sensor. I'm going to borrow a scan tool from a guy and erase the codes and see if anything comes back. I'm just afraid that the new O2 sensor I just put in is now junk (it was a Bosch). Perhaps it got contaminated by something burning off the engine (such as PB Blaster, coolant, etc.) Any thoughts?

[bszopi]

You've been around long enough... why did you put a Bosch in?!?

[tractorman]

I'm surprised that Bosch O2 sensors and plugs work so poorly in these engines.

I've worked on all kinds of diesel equipment with Bosch components: Injectors, injection pumps, relays, glow plugs, switches, sensors... and in my experience, Bosch products are hard to beat.

But I steer clear of them for my own GM V6's.

[ikessky]

You've been around long enough... why did you put a Bosch in?!?

Touche.... So you think it's a matter of the Bosch being junk? I guess I'll pop the $75 for the AC if that's the case.

[IsaacHayes]

Denso makes a good one. www.sparkplugs.com have them for a good price. I got mine for like $20 less than the bosch are at the stores.

[ikessky]

I've got the scanner in hand, so I'll delete the codes at lunch time and see what happens from there.

[ikessky]

Well, the codes came back right away. Looks like I'll be ordering a new O2 sensor and I'll make sure it's a Delco this time!

[Canyonero]

Ooops, apparently I haven't been around long enough. I have a pair of Bosch O2 sensors coming in today. The ACDelco were about twice as much ($100+ ea) and my engine takes two! Oh well...

[JMo60]

I'm surprised that Bosch O2 sensors and plugs work so poorly in these engines.

I've worked on all kinds of diesel equipment with Bosch components: Injectors, injection pumps, relays, glow plugs, switches, sensors... and in my experience, Bosch products are hard to beat.

But I steer clear of them for my own GM V6's.

Bosch has high and low end stuff. I work in engine R&D, (diesel, gas, hydrogen, etc.) and the expensive bosch stuff is top of the line, while the replacement stuff you get from the parts store seems to suck major.

I like thier injectors and fuel systems

[ikessky]

I put the new AC sensor in, sprayed the MAF off with electronics cleaner, and then cleared the codes. After that I drove around for 30 minutes, stopped the car and restarted, drove some more, etc. I got back home and plugged the scanner in and the codes haven't reappeared. I guess I'm feeling pretty good right now and hope that this is it for a while. I still have to change the fuel filter and I noticed that the PCV valve I currently have is really noisy. I guess I'll change that also.