I have had this problem for years - P0400

1999 CHEVROLET TRACKER
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BKLIMECK
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I have a 1999 tracker 1.6l 4x4 2dr convertible, the ses light keeps coming on. When I check for codes I get p0400 insufficient EGR flow detected, what are the most common fixes or causes so I can look at first before I start throwing money at it? This has been going on for two years and now the light won't stay off for more then a day.
Nov 13, 2011 at 12:23 AM
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MHPAUTOS
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Clean or replace the EGR valve.
Nov 13, 2011 at 12:26 AM
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