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2009 Nissan Versa V4 with engine code P1421, what can I do to fix this problem?

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2009 Nissan Versa V4 with engine code P1421, what can I do to fix this problem?

Vehicle: 2009 Nissan Versa V4

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You will have to take it to the dealer and get an ECU update, it might be as high as $150

If you look at the link below there is a service bulletin under "Tech notes"

P1421 NISSAN - Cold Start Control
Read more: https://www.autocodes.com/p1421_nissan.html

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