0 votes
COULD I get some info with code p0430 on 2004 sienna
Vehicle: 2004 sienna xlt 3.3

1 Answer

0 votes
by (12.6k points)

P0430 Catalytic below threshold Bank 2

Catalytic convertor below threshold mean it can no longer control harmful emission emitted into the atmosphere. In order for the catalytic convertor to work properly the engine has to go from rich to lean by use of a front 02 sensor which is the engine management, and a downstream 02 sensor which is the catalytic monitor sensor. When a catalytic degrades it is no longer able to store oxygen which is necessary for a reduction in harmful emission .

 Located in the front of the engine area is Bank 2

 The catalytic convertor in replacement includes its exhaust manifold

Related questions

0 votes
1 answer 562 views
asked Jan 18, 2018 by Andreo Grzebowski
0 votes
1 answer 1.2k views
0 votes
1 answer 2.6k views
0 votes
1 answer 267 views
asked Jan 2, 2017 by frank hense

37.4k questions

31.6k answers


22.2k users

Need A Repair Shop?
Find local automotive repair shops in your area.
Does your car have Safety Recalls? → Check here