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Discussion Starter #1
Engine light, not wrench, go intermittently on and off, kinda depending on how hard I push the peddle. It's the bank 1, front cc that is reporting issues , light goes off after a day or so as long as I drive it below 2500 rpm. Before I drop almost 800 into this car with parts and labor, might there be a chance it might just be a sensor change?
 

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Your firewall side pre-cat is plugged or deteriorating. What mileage?
 

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You have 2x pre-cats which sit on the exhaust manifolds. The Y-pipe bolts to the pre-cats. Then you have the main cat which bolts to the Y-pipe. So, 3x cats in total.
If you are not in an emission test jurisdiction, then just gut the pre-cats and install de-foulers/sims.
 

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Bank 1 is not the front - radiator side - that's Bank 2.

I know I had mine replaced and it cost me almost 1k.

FYI - I have a Bank 1 (Firewall side) - brand new with both Oxygen sensors for sale - I crashed mine before I could install it. See classified if you want to get mine or PM me.



Sent from my SM-G975U using Tapatalk
 
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