Last post on Sep 27, 2013 at 3:04 PM
You are in the Nissan Maxima
What is this discussion about?
Nissan Maxima, Sedan
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#3553 of 4184 Re: Maxima 2000 P0430 and smell [rrachapudi]
Dec 18, 2006 (9:35 pm)
I am not sure what's MFC, may be a MAFS (Mass Air Flow Sensor)? - that costs $105 from dealer and replacement is 15 minutes, if that was it then you should use another mechanic.
Any way, P0420 and P0430 are specific codes for three-way catalysts. Your car has 2 pre-cats and then one big main cat. You seem to have error codes, which may indicate that both pre-cats are bad. These codes are produced as a result of rear O2 sensors monitoring the amount of oxygen exiting the catalysts. Some people say that replacing rear O2 sensors is the right thing to do. I don't really know, a bad O2 sensor has its own error code... When I had P0430 code, it was really one of the cats but the dealer made me change the rear O2 sensor on it as well otherwise he wouldn't honor the warranty. The O2 was good, that I know for sure. So, I am not sure if your O2s are bad.
Bad catalysts usually smell, give your car some gas, see if you feel the sulfur smell, if you do then this is it.
Search online for Technical Service Bulletin(TSB) NTB00-070a. There is a ECM number under your hood and if it matches the ones listed in this TSB then your ECM needs to be reprogrammed. Should be around $90 at Nissan dealer. You should also check for intake and exhaust leaks as they can be the cause of these codes as well.
#3554 of 4184 Re: Maxima 2000 P0430 and smell [dmaljunk]
Dec 20, 2006 (8:40 am)
You are absolutely right. It was the Mass Air Flow Sensor that the mechanic changed and charged me $700 for it.
I am not sure if the dealer would honor my catalyst warranty since the car has >93000 miles, but as you suggest, I shall take it to the dealer to see if they say I need to replace the entire catalytic converter or change the O2 sensors.
You guessed it right again. I was getting sulfur smell when the car was parked in the garage immediately after it came back from a road trip. I had the TSB you referred to for the last month or so and was hoping that it might just be a matter of reprogramming. It does apply to my car. There was no easy way for me to locate the ECM part #. The only suspicion I have is why didn't the SES light come on now rather than long ago. It kinda leads to me to agree with your earlier statement that there may be bad catalysts or malfunctioning O2 sensors. There may also be intake/exhaust leak as you suggest.
So, I guess I will take it to a dealer and have them analyze and hope it is not the same $3000 job the other mechanic says my car needs.
Thanks a lot for taking the time to analyze my problem.
#3555 of 4184 Re: Maxima 2000 P0430 and smell [rrachapudi]
Dec 20, 2006 (8:46 pm)
well, if are taking it to the dealer then keep in mind that the dealer is always interested in replacing parts and as many parts as they can justify. I am sure they would suggest replacing both cats and all O2 sensors. The visit to them with SES light on will definitely cost you $90 just for diagnostic and in that case you should get the dealer to re-program your computer as per that TSB and clear the error codes at that visit. Do that and drive until you get the SES light again, it's possible that because of reprogramming, the codes may be more specific to O2 sensors next time.
#3556 of 4184 2000 Maxima won't start intermittently
Dec 21, 2006 (10:14 am)
Fully loaded 2000 SE auto bought new (now has 68000 miles). My first problem with the car happened yesterday. Tried to start the car and nothing happened. The battery is new and is fully charged (lights, wipers, htr, fans, etc all work). Tried to jump the battery twice...no results. All the instrument lights come on and don't dim when I try to start it. All the fuses and relays check out perfect. I tried wiggling the shift lever in case it was the neutral switch...no results. Tried wiggling the key in case it was the ignition lock...even tried a different key...no results.
After about 120 attempts...all of a sudden...all by itself on the 121st attempt, it started perfectly. I tried it 20 times in a row after that and it started 20 times. Then the identical thing happened today. Used it all day with no problem, then at the mall, it just wouldn't start again. After 2 hours, it started just fine.
What's up with that???? Any ideas? thanks!
#3557 of 4184 2004 Maxima - Engine Dead?
Dec 30, 2006 (8:17 am)
I have a 2004 Maxima SE with 70k+ miles. According to Nissan I need a new engine. I am taking the car for a 2nd opinion next week, but considering NISSAN is saying a new engine is needed I'm wondering what the...
I realize 70k is alot for an '04 (even though it was purchased in '03), but still a new ENGINE?
My question is simple... has anyone here heard of or experienced any engine problems from the 6th generation Maximas? Thanks in advance!
PS... I'm considering purchasing an engine from eBay. Nissan is quoting me $8k for a new one. yikes!
#3558 of 4184 Re: 2004 Maxima - Engine Dead? [youknix]
Dec 30, 2006 (6:20 pm)
what's wrong with the car? what are the symptoms?
#3559 of 4184 Re: 2000 Maxima won't start intermittently [abern01]
Jan 02, 2007 (8:27 am)
We have had this problem with our car before. Nissan replaced the ECM and some sensors. It never fixed the problem. We also have other problems as well that Nissan has been unable to fix. I apologize for not being able to hlep you out.
#3560 of 4184 Re: 2004 Maxima - Engine Dead? [dmaljunk]
Jan 02, 2007 (5:34 pm)
i took it in because there was a definite power loss (seemed "sluggish"). once i actually listened to the engine i was able to detect a pinging...
i took it to nissan and they replaced multiple sensors, in the end they said it's "likely" the engine. i would need to pay another $400 to have them diagnose the problem and they recommended that i didn't go down that road since it would basically mean a new engine. they quoted me $8k for the engine stating "the nissan engineers helped us diagnose this". i decided to seek a second opinion from a local mechanic who specializes in engine upgrades for those who wish to race or improve performance.
i'm waiting for the second opinion. i've also starting looking for a used engine finding a couple on ebay $1k with $400 shipping. not too shabby... averaged 10k-20k miles on the engines.
#3561 of 4184 lack of temperature control
Jan 02, 2007 (7:15 pm)
Is this a common problem with 2005 maxima, or just unique to mine?
The automatic temperature control is nearly worthless, however, the dealer claims it is normal.
1. Occasionally it locks on in heating or cooling and won't control. Have to shut it off to go back to normal operation
2. It won't allow cooling compressor below 60F, so on sunny days I have to go to manual mode to get enough outdoor air in upper vents to be comfortable
3. Cabin temperature is nowhere near setpoint. Had to set it at 80 on a 35F morning to be comfortable. 3 hours later, had it set down to 70 trying to cool the car in 60 ambient.
Would appreciate any feedback on similar problems and fixes.
#3562 of 4184 93 Max DOHC floods one cylnder
Jan 02, 2007 (9:33 pm)
I just bought a 93 Max with the DOHC, I already have a 94 SOHC that runs great. But the 93 has a problem I have never seen, there is one cylinder that keeps flooding with fuel and I have already replaced the coil, fuel injector, and spark plug ran great for 3 days then started flooding that cylinder again and now blowing white smoke out of the tail pipe, smells like fuel and oil. There is a loud knock coming from the rocker arm on the opposite side of the head. I don't think this would effect this cylinder. If I pull the plugs from the front (left) 3 cylinders only the flooded one is smoking. I'm stumped....Help