Emissions trouble (high CO)

Heads, valves, pistons, rods, crankshaft, etc...

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Legacy777
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Re: Emissions trouble (high CO)

Post by Legacy777 »

Would you be able to take some pictures of what it looks like and post them?
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
OTTERMATIC
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Re: Emissions trouble (high CO)

Post by OTTERMATIC »

Sure, here’s an Imgur album with pictures of anything that looked relevant: https://imgur.com/a/gyNS6lJ

I think I’ve figured out what I need to do, which is to replace the header with something newer that’s more compatible with modern universal cats. The muffler is totally rusted through but that should be pretty easy to replace. Then both cats I’ll just replace with universal ones.
Legacy777
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Re: Emissions trouble (high CO)

Post by Legacy777 »

Yeah, the non turbo exhaust has changed designs over the years a bit. Your best bet is either to try and find a complete exhaust setup from a newer non-turbo engine and/or piece things together with universal fit stuff and muffler/exhaust shop customizing something.

The only real constraint is the O2 sensor and it's just a narrow band O2 sensor.
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
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