how to put in 02 sensor(rearside)

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09-09-2004 | 07:09 PM

jaykid806

Thread Starter

Senior Member

Joined: Mar 2003

Posts: 213

how to put in 02 sensor(rearside)

ok i looked in the faq's and it doesn't tell how to change out the 02 sensor of the back side of the engine(near firewall). can someone give me advice/directions?

09-09-2004 | 07:50 PM

HondaKiller718

Supporting Maxima.org Member

Joined: Nov 2001

Posts: 944

Did it two weeks ago, very easy, but you can use a adjustable wrench or get this neet tool they sell to remove 02 sensors. Well anyways, I did mine with my front lifted on jackstands. Get on you back under the engine and look for the 02 sensor that get wired to the back of the engine. Its on the y pipe section that is connected to the rearside of you engine.You need to pop your hood and disconnect the O2 connector first. When you trace the 02 sensors up you will see one is connected to the rearside and it had certain plastic plugs which keep the wire from dangling, that you can use a scissor to cut those. Remember where they belong because you will have to reuse the same holes for your new sensor. It pretty straightforward and it is also illustrated in the Haynes Repair Manual for Nissan Maximas. Good luck and remember to keep the engine off until you are done and dont drop the new o2 sensor the can break.

-Rene