Check Engine Light Keep Coming On With These Codes I Am Getting From My Scanner. I Looked Up The Codes And They Are O2 Related .what Ones Should I Replace First To Solve Problem? I Am New To A Nissan Maxima Problems And Your Help Would Be Great From The Great Maxima Owners Who Post Here.

 

Check fuse #34

 

would that be in the engine compartment or under the dash?

 

under the dash, underneath the left HVAC vent

 

the fuse is blown and i replace the fuse and it still keeps blowing out where do i go to next, check the 02 sensor wires to see if there is a crack in the wire or is there a relay under the hood, need help!!!!!!!!!

 

where do i start troubleshoting where and how

 

wait does your car start up?

 

check the wires for a short, it also may be an internal short inside one of the o2's, but I'd start by looking at the wires near the manifold on the rear bank. Also, download the fsm on phatg20.net, it will be of great help.

 

the wires look ok my scanner only gives codes do i need a more advanced one to check all 3 o2 sensors

 

i replaced all of my o2 sensors when one went bad, because my friend is a mechanic at nissan and he told me if one goes bad rest assure the other ones will 2.

 

thats a load of bull. i replaced one about 5 months ago and havnt had a problem with any of the other ones yet...

its probably just what they tell him to say so they can make money.

 

it's not bull **** , he works for nissan, he does it for free. I don't pay anything for it.

 

if one goes bad and you take your time to replace it, it will effect the other ones and the knock sensor.

 

you may not have to pay, but i still dont believe it. if they trained him and told him that than i dont see why he wouldnt believe it. but car dealers and manufactures are schemey. ill believe it when it happens to my car. but in about 5 months, ive had ZERO problems with any other one or the knock sensor. i havnt heard of many cases where anyone has replaced one and then all the others suddenly went bad too. sure over time (like a year or maybe longer) it could happen, and in some cases sh*t luck makes all go bad within a short period of time...but why waste your money if theyre still working properly? (obviously, since you dont have to pay...that last statement doesnt apply to you)

 

ok apparently you must know everything. I've seen over 10 cases that the knock sensor and eventually the other 02 sensors have gone bad. None for a 99 maxima, but mostly for 95-97. Since his car is a 97 it's the same issues i've had.

So I guess that's bull**** as well. Hmm..

 

key word is in bold.

now if you read my post and understood it... youde realize this:

im not saying that is doesnt happen. im sure it does. im just saying its bull that you should replace them all at once. it it aint broke, dont fix it. save some money.

oh..and yes, i do know everything. im god. duh.

 

I dont' care about saving money, if you do that's good for you. I care about my car running flawlessly.

 

alright man, i wish you and your car the best. i was simply trying to say that theres no reason to change them if theres no code, because that means theyre still in spec. but if you want to, hey...its youre car go for it! no need for the attitude though man. i was kidding about the knowing everything. you didnt need to add the "good for you" sarcastic comment. if you didnt mean it to be sarcastic though, my bad for reading it wrong.

 

ok sorry for being to sarcastic. Must be my car that's having all the bad luck i guess because when all of 02 sensors went out my darn knock sensor went out too. So I was just pissed.