Oppo mechanics, HALP (plz?)

"Smallbear wants a modern Syclone, local Maple Leafs spammer" (smallbear94)
08/09/2017 at 12:04 • Filed to: None

GTR for your time.

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DISCUSSION (28)

HammerheadFistpunch > Smallbear wants a modern Syclone, local Maple Leafs spammer
08/09/2017 at 12:11

cats last exactly as long as they pass inspection.

Smallbear wants a modern Syclone, local Maple Leafs spammer > Smallbear wants a modern Syclone, local Maple Leafs spammer
08/09/2017 at 12:12

Link in case of kinja:

http://oppositelock.kinja.com/1797678541

sony1492 > Smallbear wants a modern Syclone, local Maple Leafs spammer
08/09/2017 at 12:12

If the cats bad the exhaust may smell of sulfur on occasion. The only way to see a melted down cat is to unbolt it and look in, or shake it and hear it rattle. If your exhaust has ever been glowing red hot, chances are the cat got fried. If your cars been running rich for a while it probably toasted the cat, because the fuel can burn in the exhaust increasing the heat at the cat past what it can handle but that ties back into glowing exhaust

benjrblant > HammerheadFistpunch
08/09/2017 at 12:13

This. My cats are going on 21 years now and they’re fine. I’ve seen some last just a few and some last decades.

EL_ULY > Smallbear wants a modern Syclone, local Maple Leafs spammer
08/09/2017 at 12:13

If there is good combustion, they will last as long as the car exists. If there was a defect (does happen every now and then), it will usually happen within the extended manufacturer’s emissions parts warranty time.

Smallbear wants a modern Syclone, local Maple Leafs spammer > HammerheadFistpunch
08/09/2017 at 12:14

That’s fair enough, and frankly if it’s the cat that’s gone I’m perfectly happy just to let it blow out... it’ll get me through the next couple years as far as the inspection goes (next one due this September, then 2 years to the next).

But I’d like to have an idea what I’m looking for when I try to find the noise.

Party-vi > Smallbear wants a modern Syclone, local Maple Leafs spammer
08/09/2017 at 12:15

90k miles I thought, althoughthe cats in my E46 are still going strong.

Smallbear wants a modern Syclone, local Maple Leafs spammer > EL_ULY
08/09/2017 at 12:18

If “good” means “stock setup for emissions regs” then that could be an issue... I had it tuned last year. With that being said, it should be fine because that was just 30,000km ago and the truck only has 104,000km total.

No idiot lights or anything saying my A/F is out of whack or anything like that. I dunno.

HammerheadFistpunch > Smallbear wants a modern Syclone, local Maple Leafs spammer
08/09/2017 at 12:19

does your truck have post cat o2 sensors? you can get a reader and check the aft sensor reading. it should charge dramatically from startup to warm running if you still have a functioning cat.

sony1492 > Party-vi
08/09/2017 at 12:20

Theoretically cats will last the life of the motor, they start to fail once they get contaminated. Basically once something on the car breaks and it isn’t fixed immediately it can do a number on the cat(excess fuel in exhaust from running rich, coolant from blown hg)

Smallbear wants a modern Syclone, local Maple Leafs spammer > sony1492
08/09/2017 at 12:20

It’s probably been running rich er for the last 30,000km because I got it tuned. Shouldn’t be super different, though, because the guy couldn’t drag much out of it without knocking... figured too much back pressure because of what looks like an undersized exhaust.

Never been red hot as far as I know. Who knows about the PO though.

The truck only has 104,000km total.

Smallbear wants a modern Syclone, local Maple Leafs spammer > Party-vi
08/09/2017 at 12:22

I’m at 60,000. No idea how the PO treated it though, so there’s that. Still shouldn’t be going out yet imo

Smallbear wants a modern Syclone, local Maple Leafs spammer > HammerheadFistpunch
08/09/2017 at 12:24

Yeah... if the UltraGauge will pick it up I’ll try that. If I have to pull the sensors out it’s a no go unless absolutely necessary. When I got it tuned last summer neither downstream O2 would come out... we had to pull the upstream instead.

Thanks.

sony1492 > Smallbear wants a modern Syclone, local Maple Leafs spammer
08/09/2017 at 12:25

Richer has better power, 12:1 (14:1 being best for efficiency) is ideal so I’d imagine he tuned in something along those lines. It wouldn’t take too many miles kill a cat.

Smallbear wants a modern Syclone, local Maple Leafs spammer > sony1492
08/09/2017 at 12:41

I doubt he went that high, like I said he wasn’t able to pull much out of it... but it seems it could definitely be the cat. Would there be aftermarket cats that can take the richer mixture?

EL_ULY > Smallbear wants a modern Syclone, local Maple Leafs spammer
08/09/2017 at 12:42

as long as fuel trim numbers are ok

Smallbear wants a modern Syclone, local Maple Leafs spammer > EL_ULY
08/09/2017 at 12:48

I’ll check them. Thanks!

RallyWrench > Smallbear wants a modern Syclone, local Maple Leafs spammer
08/09/2017 at 12:54

Really depends on how a car is used. Lots of short trips with condensation in the exhaust, maybe 100k. Long trips, freeway use, 200k+ in some cases. We’re seeing a lot of Mercedes and VWs need cats before 120k, the Mercedes cats crumble internally and rattle, the VW cats set codes. If they’re rattling it doesn’t tend to change when turning, more with revs, and in my experience they rattle most at or just off idle. If the car misfires for even a little while, depending on how quickly it shuts the injector down in the offending cylinder, or you ignore a rich running condition, it can greatly reduce a cat’s life.

sony1492 > Smallbear wants a modern Syclone, local Maple Leafs spammer
08/09/2017 at 12:56

I kinda doubt it, the richer mixtures increase soot which gets clogged in the fine honeycomb like structure and makes the catalytic process not happen on top of eventually clogging up flow and leading to power loss. Your best bet would be to just have a pair of working stock converters that you only put on for smogging.

Mini Guy- Now has a 4Runner > Smallbear wants a modern Syclone, local Maple Leafs spammer
08/09/2017 at 12:58

Cats normally last for eleven to fifteen years, then they end up passing away. But they are feisty. I recommend dogs

Smallbear wants a modern Syclone, local Maple Leafs spammer > RallyWrench
08/09/2017 at 12:59

100k—km or mi? Most of my driving is a 12-15 minute commute. Often ridden hard once it comes up to temp.

Only 104,000 total km though. The last 30,000km have been with a tune, but still...

Thanks!

Smallbear wants a modern Syclone, local Maple Leafs spammer > sony1492
08/09/2017 at 13:03

Oh, I wasn’t thinking of replacing them now... just wondering for when they blow out completely (if that’s actually what the noise is). For all I care I’ll leave them and let them blow out as long as it doesn’t clog instead and still passes the Etest.

Just want to have an idea what to look for and if this should be on the list.

Thanks!

Smallbear wants a modern Syclone, local Maple Leafs spammer > Mini Guy- Now has a 4Runner
08/09/2017 at 13:04

I’m shocked this took so long...

Mini Guy- Now has a 4Runner > Smallbear wants a modern Syclone, local Maple Leafs spammer
08/09/2017 at 13:06

Me too. I thought this would be one of the first replies

Future next gen S2000 owner > Smallbear wants a modern Syclone, local Maple Leafs spammer
08/09/2017 at 13:08

Move to a place with no emissions and cut the exhaust off.

Smallbear wants a modern Syclone, local Maple Leafs spammer > Future next gen S2000 owner
08/09/2017 at 13:18

Meh, once every two years on loose standards... ain’t care. Just want to know what I’m looking for. If it’s the cat, as long as it doesn’t clog and kill the power, it can blow its guts straight out the back for all I care.

Mitsubishi Outlander EV > Smallbear wants a modern Syclone, local Maple Leafs spammer
08/09/2017 at 13:31

Average cat lifespan is 12-15 years for pets, or 4-5 years in the wild.

pip bip - choose Corrour > Smallbear wants a modern Syclone, local Maple Leafs spammer
08/10/2017 at 06:35

never had a problem with cats