The code just says defective o2 sensor. i bought one but its part number 15727 whch is after the catlac converter. i figure a o2 sensor before the catalac converter is more prone to fail then one after converter so i wanna ask you guys could i use this sensor for before the catlac converter or are they two different sensors?


and if not how do i tell which one is bad?

 

First off a code reader will give problem code numbers and they are different depending in whether its a heated sensor not... bring it to autozone and have then scan it then come back with some info on what bank ehat sensor heated or not....otherwise most cant help aside from tellin u which sensor you bought

 

Codes are location specific. If you post the code# we van tell you whitch sensor it is.

 

Pull the codes so that we can tell you which one is defective. As for swapping ability, the oxygen sensors before the catalytic converter are different from the one after it.

 

ok Finnally got codes pulled and glad the california swirl control valve dissapeared cause its not a cali car but has different ECU.



anyways got code.


p0161 AND PP0165

 

Im guessing that isnt for a maxima, neither of those codes are valid for a 4th gen.

But for a mustang and most cars p0161 is bank 2 sensor 2. Hope it helps.

 

i double checked and those are correct from Autozone.

 

i just need to know which one is bank sensor 2 . and sensor 3 in bank 2.

 

If that is a 4th gen code then its a cali emissions car. It will be the second o2 sensor in the exhaust for the second bank. If you need someone to visually point it out, sorry. Get under the damn car and just do it.

 

Front, Right, Bank1 sensor 1 is firewall side. P0130 P0135
Front, left, Bank 2 sesnor is radiator side. P0150 P0155
Rear, Bank 1 sensor 2 is after the cat. P0136

The post cat is different from the pre cats. voltage on it is 0 to 2.2 volts. The pre cats are 0 to about 1 volt.

P016X is not a maxima code at all...

 

P0161 is a code for a cali emmisions 99 max. Look it up. It would have really helped if the OP had posted the info on his car.

 

Update your car info or state it in your OP.

 

well it had bad miss fires from a fried ECU when i bought it i got another from a used auto part place and had people program the ECU to my car cause it wouldnt start it. its ran on all 6 cyl great since.


ok, i had no idea it came out a 99 Cali spec vehicle when i bought it but i kinda got a feeling when i got a code for the california swirl control valve was not working. but now that code is gone, and to top it off i didnt know the cali spec codes were different.


so if i get under the car how many o2 sensors is their? my problem is the one toward rear of car right?

 

is this accurate for our cars?

http://forums.maxima.org/5th-generat...on-issues.html

 

Depends on what emissions spec the actual car is. Fed spec cars will have 3 total. 2 upstream and 1 down. The downstream is after the catalyst, after where the two exhaust pipes meet. The upstream ones will be before the two pipes come together, one on each bank/pipe. On cali spec cars its different, I think 4 total. If you got a fed spec car with a cali ecm then get that outta there asap. What did you do about the key situation when you switch ecm's? 99 cars are immobilzer equipped. When you put in a new ecm thats supposedly from another 99 it should have required reporamming of the new keys.

 

Uhh, dude thats for 5th gens, not 4th gen. Exactly WTH car do you have and with what emmisions regulations?

 

no all we did was have mechanic put the ecu in after i tried and it did same thing started then died then never started again. some guy came reprogramed the car and its ran since then.


im pretty sure its a fed spec car with a cali ecm. and whats the big deal with doing that? it runs great.

 

ok, i changed the o2 after the Cadillac converter i have 3 total sensors, well the CEL came on within 5 minutes of driving after clearing the CEL, i got code for o2 bank 2 and one for a swirl control valve vacume leak dunno what that is.


anyways the one after Cadillac converter said NISSAN on it so i know it had to be worn after 230k miles but still worked changed it anyways, i pulled the o2 out the very front by radiator and it was a Bosch and isn't that old.

went to try and take out the o2 in the rear of motor im guessing is bank 2 and the o2 socket i rented didn't fit it, the o2 was too fat is that maybe the OEM one too?

 

Your Cali ecu is throwing a code for an o2 that does not exist on your fed car. You need a fed ecu for your year and trans type. 4 O2-3 O2=1 O2 that you will ALWAYS have a code for.

I really mean no disrespect, but every thread you have started is a fail. From your posts I get the impression that you should not mod your car, and find a good mechanic.

 

Also Cali ecu + fed car = swirl vale code.

 

get da hell out of my Thread if you're Gonna Run your mouth...

how the hell am i supposed to know if someone sold me a damn cali spec ECU i just bought the damn thing and installed it and had a mechanic come program it cause it wouldnt start.

 

i understand it now. guess im stuck with it on then.

 

I agree 100% with asand1 on this one. Your threads suck. If you dont get a fed spec ecu then you will continually throw those codes. And what in gods name is a "cadillac converter"? Does it convert your car into a cadillac? Catalytic. Not cadillac.

 

Wasn't suggesting you should have know, just saying find another. Also try to learn as much as you can before posting a new topic, there is a wealth of knowledge here and we all want to help you. Expect some constructive criticism and don't get too definsive. I applaud your willingness to fix and mod your car, but be careful cause you could easily do damage to it or your wallet.

 

were all here to help each other. their maybe something i know better then you and their may be something you know better then me. thats what u need to understand instead of talking down on me, i get on this bich everyday and i help people with their problems i expect it back when i ask.


i don't expect you guys gettin on here sayin my threads suck, how in the hell do they suck their simple questions.

 

Wasnt anything simple about what you asked. You never bothered to mention the damn car was a 99, and had a cali spec ecu. I had to dissect that info by myself. Furthermore in your original post you never told us what the code was so we could know what sensor it was. You didnt tell us the brand of the o2 you bought. You didnt mention year of car. Your thread was a complete failure because of you. It took alot of prying and picking of info, but you got the problem identified and have a solution for it. No one else bothered to chime in because your a moron and couldnt provide enough info for us to help. You got your answer, move on.

 

Just stating from a newbie perspective, but yeah man you have to do some research before posting, otherwise you will receive some strong criticism from members wanting to help you.

About a month ago someone posted something along the lines of, how do i make my car faster, if he had done some research he could have found just about anything.

No one here likes to really spoon feed you the info without at least "slapping your wrist" for not searching

But hell problem resolved, yes.

 

Lol, Yah....I'm a Moron okay lol.......... I thought Honda-Tech kids were immature but wow i get guys like you. lol have fun..