72types

i have a 08 types and my cats went out ...was wondering how many does it have and ...can i run some cats of a 05 tl?...

justnspace

iTrader: (1)

two primary and 1 secondary.

so 3 all together.
the third one underneath the car doesnt have a sensor and will not throw a code if removed.

1black_seven

iTrader: (2)

You have 3.
2 on the block, 1 on the J pipe.

The Type-S has different cats than the base model. Lower cell count I believe.

NBP04TL4ME

Agreed with 1black_seven as I don't believe they are x-compatible.

Hi speed

iTrader: (3)

The 05 cats will fit the type-s, you will lose a few HP due to the 05 cats being more restrictive. Cats are expensive so make sure they are really bad before replacing them. The 3rd cat is under the car and most likely not damaged, so you may only need the two primary cats attached to the engine. The rear cat is hard to get to and might be worth having a shop do for you.

polobunny

Seconded. Make sure your cats are really clogged and the cause of your issues unless you like throwing money around, in which case I can send you my bank account information.

pohljm

doubtful the cats went bad, certainly not all three. what makes you think they are bad? they should be under warranty for quite a long time as well as an emissions component.

72types

lol...im goin to my buddys shop and ok tht makes sense..and yea i have this guy selling all 3 cats and the o2 sensors 250 is tat a good price?



well both my front and rear o2 sensors are bad and i think thts wat caused the cats to go bad...i could be wrong but idk

Steven Bell

iTrader: (2)

Punctuation is your friend....

pohljm

Yep your wrong, O2 sensors dont cause cats to go bad

Acura_Dude

But bad O2s can cause your mpg to go down big time.

DuoDSG

If you look up the January 2008 Service Bulletin, there is an article there about the three catalytic converters, the codes that each will give you if there's an error, and a nice diagram of where they actually are in the car:

http://www.tegger.com/hondafaq/p0420/B080100.pdf

(Look on page 3)

As per the article (for anyone that doesn't want to click on the link):

Acura’s compact V6 engine uses three catalytic converters:
• The front warm up three way catalytic converter (WU-TWC) that’s bolted to the front cylinder head
• The rear WU-TWC that’s bolted to the rear cylinder head
• The under-floor TWC that’s downstream and mounted to exhaust pipe A

Both of the WU-TWCs are monitored and can set DTCs. Each bank has a specific DTC: P0420 for bank 1 and P0430 for bank 2. The under-floor TWC isn’t monitored and won’t set any DTCs.




A word of advice for the OP:

Replacing a cat is expensive. It's more common that the O2 sensor associated with that cat is bad, and it is cheaper to replace. You need to diagnose it correctly so you don't end up replacing a part you don't need only to find that you actually should have replaced the other part.

paperboy42190

iTrader: (7)

too many

ExcelerateRep

As Hi Speed said, the cats will physically fit, but the non Type-S cats will be more restricting. We sell our XLR8 High Flow Cat for $299 that will provide you with better performance

XLR8 High Flow Cat - Excelerate Performance - Japanese and European Performance Specialists!!

rockstar143

iTrader: (6)

Upstream 02 is an AF ratio sensor, and not just a dirty sniffer like the lower 2.
I doubt the cats are bad, although high flow ones are a good option.

Acman44

I have a 2002 Acura TL I have allot of heat coming from the car. Which indicates my converter/converter's are stopped up. Which one is most likely to be stopped up

rockstar143

iTrader: (6)

If I had to guess rear but only using logic and path of least resistance since it's the shortest distance out the back.

thoiboi

Get an infrared thermometer and go under the car. Point the thermometer to the cats and you'll see very quickly which one is clogged.

Acman44

Now I'm being told a 02 sensor might be bad.

Acman44

Does anyone no if catalytic converter cleaner work and which one is best

thoiboi

they don't work.

justnspace

iTrader: (1)

pull the cats
replace the bad one(s)

Acura TL Builder

Base models have 900 cell cats. Type-S models have 600 cell cats. Aftermarket options typically have 300 cell cats.

Chad05TL

Wouldnt fewer cell counts = less restriction? Someone above said just the opposite. They said the Type-S is more restrictive..

Acura TL Builder

Buy the PCD(Pre-Cat Delete) option if you plan to boost.

Chad05TL

People say pre cat, but on these TL's the first component in the exhaust are the 2 PRIMARY cats. There is nothing before it or "Pre". After that there is another single cat in the exhaust pipe which is before the resonator and mufflers..
I assume you are referring to the single secondary cat in the exhaust pipe...

but I ain't boosting with a SC or turbo.

Acura TL Builder

Typically/Traditionally the cat is where the 3rd cat is on the TL. This is the reason the two “exhaust manifold” cats are called “Precats”.

Chad05TL

Removing the 2 largest and primary cats wouldn't that guarantee a fail on the annual emissions test? I was thinking about going with high flow cats. (I'm getting that rotten eggs or sulfur smell under hard acceleration)
but I still want the high flow cats to do their job.. so picking the right brand is key, for mw.

Acura TL Builder

RV6 is the only brand besides Fleabay.

Im not sure about Fleabay HFPC, but RV6 won’t pop a CEL and will pass emissions.