whats up, my problem is that my car looks like it wants to stall all the time, i turn ignition on in the morning when engine is still cold, it stalls. I retry starting the engine again this time it stays on but the engine starts vibrating. So i figured that it must be the Oxygen Sensor going nuts since i have a leak in the exhaust system and stuff. Can anyone get me a good price for a Oxygene Sensor.

 

sounds like a bad MAF to me (stalling + vibration). a bad O2 sensor wont have any symptoms like that...only SES light and bad gas mileage

 

an 02 sensor only adjusts A/F a certain amount before going into default mode.

Also when you first start your car, the engine is in "open loop" which means it doesn't even care what the 02 sensor says anyways.



Also, lets just "assume" that your 02 sensor is the problem. It isn't, but let's assume it is.

So you replace the 02 because it's reading to lean because of an exhaust leak. You then have a new 02 that reads to lean because of the exhaust leak.....That would not help....See where I'm going with this?????

MAF like sooner said, of POSSIBLY fouled plugs if you drive alot of short distances and haven't changed them lately..

The "Lean" condition because of the exhaust leak will attempt to riched your a/f ratio. (To much fuel)... If you drive alot of short distances your plugs may be black and carboned up.

 

I need help.. My 03 Maxima SE has 130 thousand miles on it. Yes its true.
I have performed every service it needed a few months ago. Car runs great. You should see it to believe it. (one owner). SES light just came on. I have it scheduled to have it checked at my local AAMCO. Any idea what it can be. I already checked the spark plugs and they looked great.

I'm posting this question here because this web site won't allow me to create a new threat...newbie or something.

Any idea what causes SES to come like that? Fuel filter? 02 sensors? What can be the most probable cause?

 

Find out what code it's throwing then post it. There are too many things that can make the SES go off.

 

There are a myriad of conditions that can facilitate a SES light. Stop by your local Autozone to get a OBDII reading free of charge and post your results so we can help.

 

Please see:

http://forums.maxima.org/showthread.php?t=487272

http://forums.maxima.org/showthread.php?t=374481

 

Thanks guys. This Friday AAMCO will diagnose and I hope it’s a minor repair
I really don't have the fund.
I forgot to tell you guys this before, today I went to start my car, for a few seconds it sounded like the engine wanted to die but then everything was o.k.. What can cause this?

 

Why go to AAMCO for a diagnostic fee? Go to AutoZone, Advance AutoParts, or any local auto parts store and have them pull the codes for you FREE! Come back on the forum, post the SES code and/or SEARCH the forum for the code you get and you'll know what your problem is.

At that point, either fix it yourself (cheaper route) or THEN take it to AAMCO.

 

Thanks Nismo.
I'm afraid to drive around with SES light on. I don't want the car to halt.
AAMCO charges $29.99 compared to Nissan which is like $89.00 . I need to get this fixed ASAP.

 

how much does a MAF sensor goes for. If i plug it on OBDII isnt it supposed to diagnose the problem ? coz last time i checked it gave me an o2 code, but i dont think o2 sensor can do much, i also think its the MAF, so how much $$$$$$ can anyone sell me one or recommend a good place to buy one!

 

Negative. OBDII is not made to diagnose the problem. The primary reason for OBDII is to monitor emissions equipment. The ONLY thing required by law to allow you to access is certain sensors and all emissions equipment. Anything else and the MIL light will not come on and there will be no codes that you can see on a "generic" obdII system. Enhanced or "dealer" scantools allow you to access this info, but not anything for under $500 that's worth a damn. If you have a $5.00 multimeter or decent "generic" scantool you should be able to monitor your MAF voltage, but a code usually will not pop-up if it is incorrect. (unless the ECU knows it's getting an incorrect signal and messing up your A/F ratio which in turn makes it an emissions problem. I.E. unplugged MAF).

IMO, you should get your exhaust leak fixed first. If the exhuast leak is before your 02 sensors, this can cause weird things to happen. (Remember you are losing backpressure) After you fix your exhuast leak go out and drive your car on the interstate for a good 15-20 minutes to clean the plugs.
You may very well have a bad maf, but why would you want to dump a bunch of money into a car that is throwing all kinds of codes, burning more fuel than needed costing you more $$, and is loud or "ticking" from an exhaust leak??

 

SES light was on, AAMCO diagnosed it. One code came up. P138 which is Heated 02 Sensor Bank 1 Sensor 2.

Although the mechanic reset the SES light and it has stayed off since then, he suggested the SES light may come back and in and in that case the part above has to be replaced.
Any idea how much this part is going to cost me?

 

If you want an 02 sensor I think I saw pinnacle nissan having an online special. www.nissanparts.org. There's a way to test the oxygen sensor resistance listed in most service manuals.

 

I'm quoting myself here... Can someone please respond?

 

F.Y.I. putting your vehicles year in your avatar makes it a whole lot easier on everyone and typically generates better responses.

that being said I'm going to assume you have a 3.0...Look up TSB #01-016B ...

A quick rundown of the TSB

SERVICE INFORMATION
If an Applied 2000 or 2001 Maxima has a MIL ilOnil and any of the following DTCs stored in the ECM:
P0138 (Bank 1) H02S2 (Rear) (Max Voltage Monitoring) (your code)

there are two repair actions required to resolve this incident:
1. Replace the incident bank(s) rear oxygen sensor(s) as indicated by the DTC on the CONSULT-Il self-diagnosis printout and the vehicle's Emissions Certification Label to correct the condition.

2. Reprogram of the vehicle's ECM to the New ECM Data P/N to help prevent incidents from reoccurring.


STEPS TO FOLLOW::::
1. Determine which DTC code is stored in the vehicle's ECM by performing CONSULT-Il self-diagnosis. See Figure 2 for an example of the CONSULT-Il self-diagnosis printout.
2. Replace the incident bank(s) rear oxygen sensor(s) as indicated by the DTC on the CONSULT-li selt-diagnosis printout and the vehicle's Emissions Certification Label (see the Parts Information chart, page 7 fbr correct part numbers). See Figures 3, 4, and 5 for sensor/sensor connector location and identification.
3. Proceed to ECM Part Number Identification And Update, below

ECM Part Number Identification and Update

Deterrnine the vehicle's ECM Part Number. The ECM P/N is found on top of the CONSULT-Il self-diagnosis printout (see Figure 6), or by CONSULT ECM PIN Selection.

. Perform ECM reprogramming to update the ECM data to the new P/N. ASIST users refer to Attachment A in the print copy of this bulletin


NOTE :This is the ONLY approved repair procedure for this incident. A claim to Nissan for the repair of this incident may be denied if the repair is not performed exactly as outlined in this bulletin.


Basically this is saying that your 02 sensor has failed and it needs a ecm reprogram. If you are w/n your 8/80 and feel like threatening to call corporate on your "denied warranty claim" you technically are covered under emissions warranty since it requires a ecu reprogram. The 02 itself may/may not be covered. It's a long shot, but with the updated ecu info (covered under 8/80) the light should not come back on according to this TSB unless the 02 needs replaced.
My guess is that the standards to set the mil light where set to tight in the ecu and once the 02 begins to wear a little the code sets. They try to get around replacing all of them for free by saying to replace the 02 and only mentioning the ecu update enough to let the techs know it needs done.....Either way since it DOES need an ecu update that is covered under the 8/80.

 

your question has been answered in this post. You can also search around.

 

(: Thanks (:

 

Does anyone know how much 02 Oxygen sensors go for? I saw something on ebay for $19.95 but I'm not sure I was looking at the right part?

Please help out.