Question about 2001 Nissan Sentra
Code p 0430 refers to catalytic converter system , bank 2 --efficiency below threshold=== causes --cat converter---wiring---HO2S 2
( that is the sensor in the exhaust manifold or pipe before the cat converter for bank 2--front bank)
Posted on Mar 27, 2016
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Posted on Jan 02, 2017
Its actually not that bad to change. If you open the glove box and remove the screws then the screws along the bottom of the glove box at the bottom of the dash the box will slide out. Remember to disconnect the light if it has one. Now you will be able to see the underside of the dash. You can see a large black box that has wires and vacuum lines all over. You need to locate a small flat plate with two screws and a plug in the middle. Disconnect the plug and remove the screws. The resistor will come straight out. The back side will look like small coiled up springs of different sizes. Install in reverse.Hope this helps. Good luck. Please re-post with updates. Thanks cj2176.
Posted on Jul 13, 2009
PO 455- Evaporative emission control System leak detected (check exhaust system, egr valve, or entire intake and exhaust system)
PO440- Evaporative Emission System Malfunction (also check oxygen sensor)
Posted on Jul 13, 2009
You will need a new catalytic convertor assembly. Yours is below treshold efficiency in other words its "no good".If you have it replaced, ask the garage/dealer to give you the old one back. Its worth some cash if its full. It doesn't matter thet it failed. They are going after the mesh inside of it and that is worth some $$$$. May not be much , but better than nothing.
Posted on Jul 26, 2009
I would check that spark plug, and have that coil checked or replaced. Also check for any vacuum hose leaks in the area of the cylinder.
Posted on May 12, 2010
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