Need some insight.

[CJ_Boxster]

As a former Porsche tech, I can tell you with 100% certainty that you must replace all 4 o2 sensors. Perfectlap is correct, sometimes you can get away with replacing one but usually you end up having to replace all 4.

[Burg Boxster]

Originally Posted by CJ_Boxster

As a former Porsche tech, I can tell you with 100% certainty that you must replace all 4 o2 sensors. Perfectlap is correct, sometimes you can get away with replacing one but usually you end up having to replace all 4.

OP doesn't even know if his one O2 is bad and you're blanketly advising to replace all 4 sensors.

Honestly, this ranks up there as one of the more irresponsible posts in recent memory on this board... unless you are being facetious which cannot be inferred at all from your "qualifying" disclosure.

Oh my...

[redeye280z]

I agree that changing all 4 sensors doesn't make any sense. I did rectify the code the sensor was giving but I am still getting code 0410 and 1411. I am assuming that since I did work on the throttle body and the AOS maybe one of the vacuum lines came loose or cracked due to manipulating them. Any tricks for a home mechanic without a smoke machine to check for leaks?

[seningen]

Originally Posted by redeye280z

I agree that changing all 4 sensors doesn't make any sense. I did rectify the code the sensor was giving but I am still getting code 0410 and 1411. I am assuming that since I did work on the throttle body and the AOS maybe one of the vacuum lines came loose or cracked due to manipulating them. Any tricks for a home mechanic without a smoke machine to check for leaks?

you can try spraying carb cleaner or similar which has alcohol in it. If your idle changes -- there
is a leak where you sprayed.

Caveat -- you are spraying a flammable substance on a combustion engine.

I take no responsibility for anything :-) Although I have successfully done
this on a 928.

Mike

[Perfectlap]

Originally Posted by Burg Boxster

OP doesn't even know if his one O2 is bad and you're blanketly advising to replace all 4 sensors.

Honestly, this ranks up there as one of the more irresponsible posts in recent memory on this board... unless you are being facetious which cannot be inferred at all from your "qualifying" disclosure.

Oh my...

I think that was said under the inference that the one 02 sensor was determined to be the root of the issue. I've heard the same advice from other mechanics.

My personal mechanic tried all other avenues to no avail and replacing the other 02's was done as a last resort but did solve the issue...plus the labor to diagnose.
Porsche says the 02's are life time parts but my car was nowhere near 100K miles when this issue came up.

[CJ_Boxster]

Your right. I got caught up in the O2 sensor details.

Originally Posted by Burg Boxster

OP doesn't even know if his one O2 is bad and you're blanketly advising to replace all 4 sensors.

Honestly, this ranks up there as one of the more irresponsible posts in recent memory on this board... unless you are being facetious which cannot be inferred at all from your "qualifying" disclosure.

Oh my...