2010 sv6 cats

Conda

New Member
does anyone kno where to get some 2nd hand or new stock cats? im pretty sure mine have burnt them selves out!!! thanks
 

rang427

3.6 luxury spec
a wrecker or holden for new. try looking on gumtree it is a great personal ad service
 

Kiddo

You're serious bro?!
does anyone kno where to get some 2nd hand or new stock cats? im pretty sure mine have burnt them selves out!!! thanks
What makes you think you've damaged your cats?

Your SV6 is only around 24 months old.
 

RiCeY

F O R U M W A R R I O R
If youre getting catalyst low efficiency trouble codes I would suggest replacing the cat gaskets first.

A common issue is the gaskets leaking and messing with the post cat readings.
 

Conda

New Member
If youre getting catalyst low efficiency trouble codes I would suggest replacing the cat gaskets first.

A common issue is the gaskets leaking and messing with the post cat readings.
yeh true i have had the ute in the exhaust shop multiple time and they said they sealed it up with gasket glue and assure me its all plugged up! so only thing to do is to replace cats and see if thats the case... what do you think
 

RiCeY

F O R U M W A R R I O R
They aren't really the type of seals that require gasket glue as they are a crush seal.

If they are trying to seal old gaskets it may still be leaking.
 

rang427

3.6 luxury spec
They aren't really the type of seals that require gasket glue as they are a crush seal.

If they are trying to seal old gaskets it may still be leaking.

i know i am speaking from experience but all the exhaust work i have done at volkswagen ( im a tech) they put gasket glue on the crush type gaskets.
of course holden is very diffrent to a german company. but the way i see it is it can not hurt if you put it on no? its just going to create a more effective seal.
 

RiCeY

F O R U M W A R R I O R
Ive never used gasket glue on these cat seals and once I do a repair have not had any come back apart from those which had failed catalytic converters. Normal practice is to try seals first as they are cheap and most times fix the issue. The post cat seal isn't a simple crush between two mating surfaces type seal, the pipework actually slides over the seal. Simply applying sealant to the outside wont work as the inner seal can still leak. Reusing crush type seals isn't recommended by any manufacturer whether using sealant or otherwise.
 

kwaka738

Member
If youre getting catalyst low efficiency trouble codes I would suggest replacing the cat gaskets first.

A common issue is the gaskets leaking and messing with the post cat readings.
Ricey

Are you saying if you get codes such as:
P0420 Catalytic Converter Low Efficiency (Bank1) or
P0430 Catalytic Converter Low Efficiency (Bank2)

there may be nothing wrong the the Catalytic Converter and it could be just the seals so it is a good move just to replace these seals first to see if the problem goes away?


Thanks
 

Jackv8

Member
My ve didn"t have any cat gaskets so I replaced the passenger side but can't get the drivers side cat off its a bitch
 

Jackv8

Member
My ve didn"t have any cat gaskets so I replaced the passenger side but can't get the drivers side cat off its a bitch. But I hope this fixes my P0430 check
Engine warning
 

Jake96

Member
If youre getting catalyst low efficiency trouble codes I would suggest replacing the cat gaskets first.

A common issue is the gaskets leaking and messing with the post cat readings.
Ricey, I bought a 08 ve from a dealership about 3 weeks ago, 4 days later engine light came on, took it to the dealerships mechanic scanned it and p0420 and p0430 come up bank 1 and bank 2 below efficiency, they replaced o2 sensors and cleared codes 3 days later light comes again same codes come up so they spoke to there exhaust shop and he reckons put restrictors in to stop so much air flowing threw did that and then 4 days later engine light comes on again what should I get them to do? I spoke to my mechanic and he reckons they should replace the cats or have the car tuned, any ideas? Should I get them to replace the cat gaskets?
 

RiCeY

F O R U M W A R R I O R
Gaskets first as it's the cheaper option, there is also a software update to make the ECU less sensitive to 02 sensor readings as it was logging these codes unnecessarily. Personally I'd do software update first and see if that fixes the issue.
 

Rhys duncan70

New Member
Gaskets first as it's the cheaper option, there is also a software update to make the ECU less sensitive to 02 sensor readings as it was logging these codes unnecessarily. Personally I'd do software update first and see if that fixes the issue.
So are we talking pre or post gaskets? And how the hell do you get to all the bolts? Looks like it may be easier to drop the motor?
I currently have both codes coming up on a 2011 sv6 that’s just clicked over 200ks. It’s also surging at low throttle
Cheers Rhys.
 

ginga jimmy

New Member
Thought I'd revive this thread rather than starting a new one. I'm getting a consistent P0430 code (bank 2 catalytic efficiency) on my VE Omega Ute. I've disconnected the battery, replaced all the oxygen sensors, the catalytic converter (new gaskets, etc.), plugs, checked for exhaust leaks throughout the system and cleaned the airflow meter. Starting to get expensive! My VE is the model prior to the one that had the software update to reduce the sensitivity of oxygen sensor readings.

Engine light is still coming on, although not as readily with the new plugs. It now takes a day or two to come on after being reset rather than half an hour or so. Seems to come on going up slight inclines at low revs (so when labouring a bit). Could it be ignition leads or something like that? Otherwise the car runs great.

Anyone have any ideas?
 

syked

Donating Member
@ginga jimmy Do you have access to a scan tool.
If so, have you checked live data of O2 sensor voltages on all 4 sensors at idle and say 2500 rpm.

You could get 2 of these that go on the post cat sensors to and see if they help .

https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.com.au/ulk/itm/282256410019

you could also check the below site and see if there is in fact a software update for your vin. Just got through the selection criteria and see if there is P0420 And P0430 fix .
https://tis2web.service.gm.com/tis2web/
 
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