2009 aveo check engine code shows 1421, what is that

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Carguy1 · Answer 1 · 2018-11-27T18:32:09+0000

Hi there,

This code indicates an issue with the intake air low pressure switch. Here is some info for you.

P1421 CHEVROLET - Intake Air Low Pressure Switch Circuit High Voltage

Read more: https://www.autocodes.com/p1421_chevrolet.html