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what is code P1404 on a 1998 chevy silverado?

Vehicle: 1998 chevy silverado 350
asked Apr 6, 2012 by anonymous

1 Answer

More information here: https://www.autocodes.com/p1404_chevrolet.html

Before replacing any parts, try cleaning the EGR valve and/or reprogramming the ECM,

answered Apr 6, 2012 by OBDIITech (2,804 points)

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