Check Engine Light With Code P1421 on Infiniti FX50

The Check Engine Light may illuminate with a code P1421 stored. Our technicians recommend  reprogramming the powertrain control module (PCM) with the latest software to correct this concern.

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Average mileage: 80,000 (80,000–80,000)
1 model year affected: 2009
2 people reported this problem
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