CEL came on... sure enough the Catalytic Convertor. What have you guys seen for prices and installation on these? I was just quoted $1,000 for parts and labor, which I think is high.

Who else has had a replacement? What is your mileage? I am at 92k in an '01, but am in MA.

 

oh lord thats dumb high... thats retarded high... i have a stock catalytic convertor for a 02, im sure they are the samething, i have 149K... id advise just go to planetmagnaflow.com and have a local exhaust shop do it

 

How do the magnaflow cats compare to the one from say warpspeed? Them seem to be similar in cost for the so called universal cat.

Subscribing to get some info...

 

I'm assuming at that price it is one or both precats that need replacing. Check the classifieds, you might find someone who installed headers is selling their precats, that's how I got mine.

 

Maybe figure out the cause of the SES light first

 

Checked it before the shop - Cat (420).


Thanks for the input from others. Will check out the recommendations. Open to whatever input is out there.

I was expecting half the $1000.

 

Try this link:
http://forums.maxima.org/showthread....eferrerid=1097

200$ IIRC.

 

0420 is the rear precat if i am not mistaken.. its the one in the y-pipe???

Can someone confirm?

 

Get urself some headers

 

Bank 1 is the rear. I'm sure the place that sells the front, from the link I posted, also carries rears.

 

OP has an 01... rear pre cat is in the y-pipe.

Can go oem or warpspeed or cattman

Same issue as I have in my other thread... just that I dont have a code yet.

 

P0420 is the front pre-cat for bank 1, located behind the engine at the firewall. P0430 is the front pre-cat for bank 2, also called the manifold cat. It's at the front of the engine.

 

The P0420 could be fixed with a simple ECU flash from the dealer. There was an update "firmware", if you will, that sometimes fixes that P0420 problem. Also, have you replaced the O2 sensors before and after that cat? If those are bad, they could be causing your cat to read below efficiency. Do a search just for "P0420" and there will be a plethora of threads about that code.

Just a couple thoughts before you take the plunge on an expensive catalytic converter.

I have been getting the P0430 code on my 01 SE since I bought it. I have 101k on it (bought it with 84k on it and it was throwing the code then). Just bought a Bank 2 pre-cat from Eastern online for $163. Hopefully that fixes my problem.

 

if ur replacing the front u should b able to get one for about 150 or under if u need to replace the back one too then get a catback system off ebay for about 180 with shipping take it to a local shop n they will put it on for u. shouldnt b no more then 250 or so for install if that.

good luck!

 

Thanks for the input all. I appreciate it. I will do some searches on p0420 to get some more information.

I don't have the inspection until October, so I have some time to make the final move. I bought the car last fall and have only put on about 2,000 miles. Not sure if the O2 sensors have been replaced at all. I am open to that option with trying it out. Any good sources you guys suggest?

Side question, if anyone is aware... will the '01 O2 sensors fit a 4th gen '98? My brother has my old one (now at 210k) with shot o2 sensors.

Does someone mind clarifying p0420 as front or rear? The statements have all been a little mixed on it. I believe it is Bank 1 - rear?


Dustey - what does the dealership charge for the update?

Thanks again all.

 

go to cattman...as far as installation 1000.00 is a steep price.

 

Install is only ~$200 on that... the part from Nissan is quoted at $800...


Has anyone had trouble passing inspection with aftermarket?

 

Great link!

 

P0420 is Bank 1, which is the REAR bank, closest to the firewall.

Bank 1 - Rear or Right Bank, closest to the firewall
Bank 2 - Front or Left Bank, closest to the radiator
Sensor 1 - Primary - Before/upstream of the pre-cat
Sensor 2 - Secondary - After/downstream of the pre-cat

For Bosch Oxygen Sensors, here are the part numbers and their corresponding locations:
Bank 1, Sensor 1: 13350
Bank 1, Sensor 2: 13375
Bank 2, Sensor 1: 15955
Bank 2, Sensor 2: 13348
-- This is for 2000 Cali Spec and All 2001-2003 (According to the diagram I found from another O2 sensor thread on this site)

For O2 sensors... Try RockAuto.com or eBay.

For the flash, I know a tech at Nissan who did it for free, but I believe if you walked in off the street, it would range from $50-$100.

As far as Nissan OEM vs Aftermarket, I would think they should operate (and test) identical. I don't see a reason why you should spend $800 on the Nissan part when there are other vendors out there who make the identical part for MUCH cheaper. But, it's your decision. I don't have emission testing here.

 

Is this good or evil?

$13 ebay "High flow" cat replacement

 

What do you think?

 

In ma have a great Nissan specialist pm me

 

To that if you are not in a crazy smog state like Cali!!

 

Thanks Dustey - really helpful information. From what I have been reading I should be okay on emissions testing in MA with aftermarket. I agree - I am not spending $800 on the Nissan piece. Now is just the decision to get the O2 sensors and risk it or get the cat replaced. I am going to talk to the specialist of InfiniwhiptinitiII and see if he has a better idea with MA testing and all.

pm sent.

MA unfortunately, so might be tough as well.

 

Nobody's bidding....

 

i took my 01 SE to the dealership.....they claim its the pre-cat in the y-pipe. what am i looking at for an install?

 

or should i try the o2 sensors first?......the mechanic claimed that the o2 sensors were fine....

 

Look in the classifieds for used ones first, be a lot cheaper. Or if you want new, go aftermarket and have a muffler shop do the install. You'll save a lot over the dealer.

 

What is weird is I got this code after putting in a new main cat. I have now the whole cattman system. I do have an exhaust leak at the resonator on the b-pipe but thats after all the o2 sensors.

 

Mine went away tonight. I have been on the highway for a couple days after I disconnected the battery. Went to start car to go home night was off.