Very helpful - thanks for the guide. I have the exact same car (PZEV, 146k miles) and I just did this with an aftermarket $460 converter from RockAuto. We'll see how long it lasts. Cataclean did not fix the code New Rear o2 sensor also did not fix the code I guess my converter was fouled/damaged by excessive oil burn, so replacing cat was the only way (besides tuning out the code) to fix
Got a Forester that has a p0420 but the cam caps and valve covers are leaking too. I’m almost certain it consumes some oil too. Think I should just replace the cat and sensors and see how long it’ll last?
It's hard to say. If it's consuming oil it's guaranteed to harm the cat again ... how long will it take to start seeing a p0420 again? Who knows. Personally I would sort out your leaks and consumption issue first ... a new cat it's a decent amount a money to be taking chances with possibly damaging it
Is the heat shield not necessary for the new manifold? I noticed you didn't replace it. I am also having trouble finding a mid pipe without a cat like you have.
OK, we have the identical sh forester. On our vehicle we wheir Not able to have the Oil consumption issue fixed? ! So we are forced to use chemicals to keep carbon build up under control. What suggestions like Cataclean would you give to keep the new cat converter as clean as you can?
Basically it was a tolerance issue in the original FB25 case halves, so they pull the engine, split the case halves, reuse your rotating assembly and put it into two new revised case halves and reinstall everything.
Very helpful - thanks for the guide. I have the exact same car (PZEV, 146k miles) and I just did this with an aftermarket $460 converter from RockAuto. We'll see how long it lasts.
Cataclean did not fix the code
New Rear o2 sensor also did not fix the code
I guess my converter was fouled/damaged by excessive oil burn, so replacing cat was the only way (besides tuning out the code) to fix
can i ask, any issues with the aftermarket one?
Please get back to me as soon as possible
Good to know about the computer Pezv issue
On the engine splash guard (UK we call them under-trays) those 2 clips on the back tuck under a separate transmission splash guard on my 2010 sh
Cool, thanks for the info!
Got a Forester that has a p0420 but the cam caps and valve covers are leaking too. I’m almost certain it consumes some oil too. Think I should just replace the cat and sensors and see how long it’ll last?
It's hard to say. If it's consuming oil it's guaranteed to harm the cat again ... how long will it take to start seeing a p0420 again? Who knows.
Personally I would sort out your leaks and consumption issue first ... a new cat it's a decent amount a money to be taking chances with possibly damaging it
Is the heat shield not necessary for the new manifold? I noticed you didn't replace it. I am also having trouble finding a mid pipe without a cat like you have.
For how most people drive/use their cars it's not nessessary. It's there really just to prevent fire if parked over tall dry grass etc.
OK, we have the identical sh forester. On our vehicle we wheir Not able to have the Oil consumption issue fixed?
! So we are forced to use chemicals to keep carbon build up under control.
What suggestions like Cataclean would you give to keep the new cat converter as clean as you can?
I've never attempted to use cat cleaner
Thank you for the reply, what did you end up doing to remedy the oil burning issue?
The dealer performed the consumption fix waaay back at 50k miles.
What did they end up doing?
Basically it was a tolerance issue in the original FB25 case halves, so they pull the engine, split the case halves, reuse your rotating assembly and put it into two new revised case halves and reinstall everything.
Can you provide the ebay link to your NON-PZEV CAT please!
It's was a single item. The listing is no longer available.
any isssues>
None
Troubleshooting a po302 on my 2006 Subaru sti. My be a catalytic converter issue
P0302 is a missfire code ... unlikely that it is a converter issue.