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P0420 2006 Nissan Altima Sedan -
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asked
Apr 27, 2018
by
Hank
what is meant when a code is pending
Vehicle:
2006 Nissan Altima 2.5
code
p0420
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Mar 12, 2018
by
Carguy1
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13.5k
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Hi there,
This means the car failed the self test the first time it ran it. So, it will run it a second time at some point and if it still fails it will turn on the check engine light. It's called 2 trip logic. So, basically pending the second trip
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