BLKROKT

Have seen conflicting information through a forum search, and the Bosch website search turned up nothing for O2 sensors. Does anyone know for sure if this is the right part number for the upstream (pre-cats) sensor?

If so, there's a great deal on Amazon @ $95


Thanks

I am Jeff

Yes. That's the correct part. I guess you got the p2626 code, huh?

BLKROKT

Thanks for confirming man. More on it later in a separate post. Installed my MBH headers/mids/X over the weekend, and threw a CEL after a few rips up and down the street. Going out to check the codes now, but pretty positive the 20k mi O2 sensors died (I hope). For $95, they were worth ordering anyway.

jvanbrecht

That is the correct part. I finally got around to installing mine this weekend. Much cheaper than the same part from MB (same part... different packaging)

Mr. Lin

as far as fitment is concerned, this part from Bosch is plug n play, correct? there's a person on amazon who reviewed this specific part number and said it didn't fit, but failed to provide pertinent information regarding his vehicle...

mr747

I've been through 6 of these bad boys

pITA

WESLEY KAY

Thanks op for writing this. Does anybody know the part number for the rear sensor??

w204nyc

What are the risks of running the car with a bad o2 sensor?

Wobble64

RearO2 Sensors are Bosch 16749.


Caution: I got this from another forum member and noted it for future use. I have not personally confirmed this (I think even if they were dead my tune would probably suppress any error message from the rear ones, so I am kind of hoping to never need one.)

Jasonoff

You run lean and melt piston heads...

w204nyc

What if the o2 isn't burned out but there's a short circuit?
I had code P2629 open circuit pre cat

Wobble64

Whenever the sensor is out, it cannot get used for automated Air:Fuel Ratio control and the engine switches to the programmed maps. If those are fine/conservative enough, nothing will happen, except the AFRs are not optimal (slight loss of power, maybe slight increase in fuel consumption). If the underlying maps are not right, e.g. when running headers without corresponding tune, then the engine could run dangerously lean.

Infiniti

amazon is showing 17016 to be left upstream and 17019 to be the right. this correct? the right one is a bit more expensive.

Wobble64

As far as I know the left and right are both identical and both are Bosch 17016

Jasonoff

What about NGK 24330?

chrisridebike8

O'Rielly's is really good about honoring the 1 year warranty. I just told them they failed and they gave me new ones. No questions asked.

bhamg

I consider Bosch/NGK-NTK/Nippon Denso to be quality-equivalent choices. That said, Bosch does not deliver the expected service life in this application IMO. I've switched to Nippon Denso, would love to see others try NGK-NTK.

BLKROKT

My Bosch sensors have been great for over 2yrs since replacing when I did the headers. Have about 20 track days and a hundred 1/4mi passes on them too. No durability issues here at all.

Jasonoff

I haven't replaced mine yet on my 2010. I'm not burning any more/less fuel than normal so how can you really tell until they completely fail?

dubzAMG

Your check engine light will come on when it senses improper readings

Jasonoff

That's exactly my point. An 02 sensor could be giving false readings as it degrades. ECU could adjust with false readings causing a rich/lean condition without detection.

hachiroku

any idea why you've been through so many? think it is the tune? I've just put in my 2nd set in 4 years. I think its my tune. maybe their location on the headers. think its the tune though. will be purchasing HP Tuners at some point as this is the first vehicle i've gone through sensors so quickly, but also the first car i've purchased a canned tune.

kkkk

It seems our part numbers are a little different here in Australia
The part I have is BOSCH 0 258 017 016. Is this the same?

PeterA90

Which headers do you have? Also, are you running e85 or race gas... particularly with lead

mr747

Race gas kills them switching between ms109 and 98RON destroys them