P0430 and catalytic question

brfan

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Joined
Jun 28, 2022
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6
Location
TN
i just had my Cat replaced. How can I ensure that my P0430 Bank 2 error code is upstream or downstream? I have 2012 Jeep Wrangler JK. I also got a P0038(bank 1 sensor 2) code right after having cat replaced. Assuming they are downstream, should I go ahead and place both? Just need more driving cycles?
 
i just had my Cat replaced. How can I ensure that my P0430 Bank 2 error code is upstream or downstream? I have 2012 Jeep Wrangler JK. I also got a P0038(bank 1 sensor 2) code right after having cat replaced. Assuming they are downstream, should I go ahead and place both? Just need more driving cycles?


You could try and do a ECM reset to see if it clears it and then it lets the ECM relearn.

But my guess with that code that the Cat wasn't a OEM and you might have to put a O2 fooler on the downstream cat that was replaced if it's the one giving the Code.
 
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O2 fooler? yes... the cat was not OEM from Mopar. I replaced both cat's


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