luckymckay21

I just had my O2 sensors replaced about 2 weeks ago with Bosch sensors. Well here we are today and my service engine soon light comes on. The codes were P1131 and P1151. I'm pretty sure thats my front O2 sesnors. Well my question is, are Bosch O2 sensors notorious for being crap? or is there something else wrong with my car that's making my sensors burn out? any info would be great. thanks

02 Ninja

It could be your mil's or the o2 extension wires. I had the same problem until i took it to the shop and it showed that my right side was reading slow which caused my cel to come on.

Nitti00GT

That is front O2s. Mine just came on cause I am running open headers w/o front O2s cause I need extensions and I have a tune to turn off the rears.

From what I hear, everything Bosch is starting to make is becoming crap. I heard from a mechanic that if the O2s aren't installed correctly in the bung then it could trip it. I also see that you have LTs, I have also heard of the pipes melting the O2 extenders causing the MIL.

cliffyk

The Bosch sensors are the same as anyone else's and Bosch is an OEM manufacturer for many brands, I've had Bosch 13275s on my '03 GT for over 12k miles (the 13275 is an OEM replacement forthe '88 Dodge Dynasty, I buy them 'cause they are usually theleast expensive4-wire sensor you can get at around $35 each) [/align][/align]Were they "plug 'n play" or universal? If they are universal replacements make sure they are wired correctly (on Bosch units the sensor + output is a black wire and the output ground is gray, this is somewhat counter-intuitive and many mechanics reverse these connections).[/align][/align]

lizzyfan

Same problem so it was adjusted on my custom tune.