Thats like a catalyst efficiency error . Im helping a friend with his Tacoma and hes getting a po430 which is a catalyst system efficiency below threshold bank 2 . And on a Toyota this error code requires replacing the cat ..

If its running fine maybe a post o2 sensor will do . But if its not , its possible the cats failing. and I would do a temperature test before and after the cat . That will determine if the cat is clogged ...

Hes also getting a misfire on cyl 2 .. So we're going to change plugs first then switch coil 1 and 2 and see if the misfire follows the coil ..

 

Thats like a catalyst efficiency error . Im helping a friend with his Tacoma and hes getting a po430 which is a catalyst system efficiency below threshold bank 2 . And on a Toyota this error code requires replacing the cat ..

If its running fine maybe a post o2 sensor will do . But if its not , its possible the cats failing. and I would do a temperature test before and after the cat . That will determine if the cat is clogged ...

Hes also getting a misfire on cyl 2 .. So we're going to change plugs first then switch coil 1 and 2 and see if the misfire follows the coil ..

I'm afraid you may be right about the catalytic converter failing. I've done some more reading, specifically at Pelican Parts and all posts on this error point to the cats. And, of course, if one is failing, the other one isn't far behind.

Let's say I'm looking at replacing the cats. What are my options here as far as upgrades, performance increase, exhaust note improvement? I may as well look into this from all angles before I open the money bag.

-oldiegoodie

 

I downloaded some freeze frame data on the fault:

Faultcode: (0x29F5) CDKKAT2 - catalytic conversion 2
Faultset 1:
(appeared at: 218344.0km)
filtered exhaust gas mass flow, Bank 2:
24.00 kg/h
Exhaust gas temperature in the catalyst of Model Bank 2:
575.00 °C
Actual lambda probe corrects to additional amplitude Bank2:
1.00 -
relative Luftfuellung:
18.00 %

What do you guys make of this?

 

I did some more research on this and apparently the code does not necessarily apply to a failing catalytic converter. From the data gathered, I was able to see that this only happened once around 1500 km ago, before I was able to see the fault stored in memory (periodic diagnostic scan). I think I have something more sinister going on that triggered this code and some of my findings seem to point to running rich. I think I may, in fact, have failing ignition coil which, at certain point in time caused a rich condition and triggered this code.

What is an average life span of ignition coils on N62 engine? Mine are at 135,000+ miles as of now. Do you think it's time to replace?


-oldiegoodie

 

What is an average life span of ignition coils on N62 engine? Mine are at 135,000+ miles as of now. Do you think it's time to replace?

-oldiegoodie

i think its hard to say that... ive seen 30k Ive seen 230K

IF i may make a suggestion, since your trying to trouble shoot a OBD2 problem really..

scan it with something else... something that will report back in OBD2

inpa coding can be difficult

 

My coils arrived today, so I wasn't hesitating and changed them right away. Well, let me tell you guys, if you think your car is running fine, no misfires, good mileage, etc., think again! I got the catalytic converter code last week and did my research. I decided to get new coils.

Job went smooth, took me about 2 hours, to do it all properly. After the job I went for a test drive. I got a bit of traffic, so I couldn't really test it out under load. At normal conditions the new coils didn't make any difference.

But then, I finally got to red light and was at the line, so I could take off and see if things have changed.

Guess what? :yikes: :yikes: :yikes:

I took off like a roadrunner! Wheels spinning like crazy! I'm glued to the seat! My face is grinning! So, yeah, those old coils were definitely on the way out and couldn't do the job under heavy load.

Here is one of the better looking ones:

 

My coils arrived today, so I wasn't hesitating and changed them right away. Well, let me tell you guys, if you think your car is running fine, no misfires, good mileage, etc., think again! I got the catalytic converter code last week and did my research. I decided to get new coils.

Job went smooth, took me about 2 hours, to do it all properly. After the job I went for a test drive. I got a bit of traffic, so I couldn't really test it out under load. At normal conditions the new coils didn't make any difference.

But then, I finally got to red light and was at the line, so I could take off and see if things have changed.

Guess what? :yikes: :yikes: :yikes:

I took off like a roadrunner! Wheels spinning like crazy! I'm glued to the seat! My face is grinning! So, yeah, those old coils were definitely on the way out and couldn't do the job under heavy load.

Here is one of the better looking ones:

I also have the same error code 29F5 catalytic conversion 2 on my bmw 320i N46 engine.. I changed to Bosch coils today and deleted the error code.. but I'm not sure how long will it take for it to permanently get deleted from the system..do you know how many Kms should I run to check if it's deleted??

 

Interesting. I'm getting closer to 100k. You think it made a huge difference?

Sent from my LGLS755 using Tapatalk

 

Throttle response is much better, especially at higher speeds and RPM range. It definitely made a difference. I was also able to get rid of the catalytic converter code. I cleared it, drove around and it never came back.

The new Bosch coils are designed differently from their old counterpart. The older design employed a "snap" to fit the coils in place. The new design is spring loaded and there is no "snap" when installing them. The outer material is more durable as well.

 

I have a 2008, mine has the newer style from your attachment.

Sent from my LGLS755 using Tapatalk

 

I have a 2008, mine has the newer style from your attachment.

Sent from my LGLS755 using Tapatalk

Maybe your coils will last longer then. They are supposed to be better than older design.

 

I wonder if they were changed out, or if lci's got the newer design?

Sent from my LGLS755 using Tapatalk

 

I couldn't tell you. Not sure when BMW did the switch to new design but they have been on the market for a while now.

 

Good work oldie ,, did you also go with new plugs ?

 

Well, I am not too proud to admit it but I changed my spark plugs around 15,000 miles ago and neglected the coils. I made the choice not to change coils at that time because I did not get any codes or misfires. In other words, I thought my coils were still working good and they were, but not nearly as good as the new ones. 15,000 miles later I get this code and surely enough it's the coils causing the problem. So, to answer the question, it's a partial yes. 15,000 miles on the spark plugs which should go for another 15-20,000 miles. I did check them though and they look all good.

-oldiegoodie

 

It takes 10 seconds to change a coil..

and 5 min to change a plug...

not really a bid deal, saying you did a rear main seal, and didn't change the cross over tube gasket... IS a bid deal...

Im going to throw a set of plugs at the n62 soon.. just because i have no base line of when it was done, i have the plugs on hand already... BUT coils no.. ill just keep a few on hand like i do for all my cars.. hell i might even have one on hand already.. BMW likes to share parts

 

Upon doing a cold start today I can say with confidence that rough idle is gone! I am not kidding; it's completely gone. Car starts perfectly!

 

its a law that no one enforces... but if you get caught its like 50k fine

what happens is junk yards when a new car comes in, they will pull the cats off.. and set them to the side,

then there is another guy who comes around and buys them.. (because he has a license to do so) and he will buy them back for what ever amount per unit,

then he deposes of them "properly" per government standard

use to have this guy in a pickup truck come around ever 3 months looking for used cats, think he gave us 50$ a cat.... it was weird.. it was like the crack head of cat's

yo man you got some cats laying around.. let me buy them from you

 

its a law that no one enforces... But if you get caught its like 50k fine

what happens is junk yards when a new car comes in, they will pull the cats off.. And set them to the side,

then there is another guy who comes around and buys them.. (because he has a license to do so) and he will buy them back for what ever amount per unit,

then he deposes of them "properly" per government standard

use to have this guy in a pickup truck come around ever 3 months looking for used cats, think he gave us 50$ a cat.... It was weird.. It was like the crack head of cat's

yo man you got some cats laying around.. Let me buy them from you

 

lol yep.. now imagine a black mazda b2200 truck with rusted out real wheel wells

actually the first time i met the guy i was like.. No i dont got anything for you man..

I was at the shop alone, when my partner came back i told him what happen.. he was like awww man.. i have a bunch of them up stairs for him..

i was like.. I didnt know you have a crack head catalytic converter market going on here man


i didnt know... guess that guy goes to all the shops and buys them back... It wasn't his money.. it was actually bought back by the state, he was just the driver

so literally it was like a drug market for cats

 

Haha so much weird **** going on everywhere. Weird how a simple law can create a black market and a need for something like that with some people actually making a living of this. Nobody buys anything except used cats here. Never seen somebody buy a new cat. Every breaker yard is going to have a ton of exhaust systems and cats all stacked up ready to go for super cheap.

 

the real beef they have with cats.. Is the material inside, stuff "known to cause cancer in California" i guess

Platinum Palladium Rhodium

Platinum is a chemical element with symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name is derived from the Spanish term platino, meaning "little silver"
Palladium is a chemical element with symbol Pd and atomic number 46. It is a rare and lustrous silvery-white metal discovered in 1803
Rhodium is a chemical element with symbol Rh and atomic number 45. It is a rare, silvery-white, hard, corrosion-resistant and chemically inert transition metal. It is a noble metal and a member of the platinum group. It has only one naturally occurring isotope


not to geek out, but you intrigued me about what the big deal is about cats,

So some poking around and i found some groups... precious metals recovery groups exc exc.. basically the underground reclaimers,

THEN i found the governmental scientists and laser beams type group... Im not sure if its more about the environment or the value of the metal basically the underground is saying its the value of the metal it self "it doesn't go bad, you can bake them clean" this trick that trick

the scientists are saying the metal must be extracted thru this process.. and bla bla bla

anyway on then

 

Platinum is a rare metal.

Sent from my LGLS755 using Tapatalk

 

It's very conductive too. Palladium as well. You'll find these metals in electronics, especially medical and other highly dependent equipment.

Sent from my SM-G950W using Tapatalk

 

Well turns out crackhead cat man is the smart one after all.