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Hi i just recently had a p0430 on my 2006 armada. Took it to the mufflier shop they said i had a crack exhaust manifold so i replace it with a low mileage exhaust manifold with cat but still having this issue p0430. Any recommendation?

Vehicle: 2006 nissan armada LE 5.6L 4x4

1 Answer

Hi there

It is possible the O2 sensors are causing the issue. You could try changing the rear O2 sensor to see if it resolves the problem. Plus, if the engine isn't running clean then it can cause this type of issue as well, so check the spark plugs as well.
by (10.9k points)

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