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contributions: 1
2004 Toyota Camry:
What do these codes mean?
PO352 coil B:
PO420 catalyst system; efficiency below threshold Bank 1: Thanks


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Location: Oregon
code P0352 usually means a bad coil
code p0420 usually means your catalytic converter is not cleaning up your exhaust.

If you have a coil that is not firing correctly you will probably get too much unburned fuel in the exhaust and that could be a reason the Cat. can not clean it up. Fix the coil situation and clear the codes and see if the Cat. code comes back. If it does come back you will probably need to replace the catalytic converter. If the Cat. code doesn't come back you're probably okay.


   
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