My Check engine light is glowing on my 1997 Olds Cutlass Supreme with 3100 V-6 engine. I scanned it with the reader and it shows P0401, EGR restricted flow. Should I replace the EGR valve? A mechanic told me the EGR passages in the intake manifold need cleaning. Which fix is better? Thanks for any advice.
Friday, November 26th, 2010 AT 10:34 PM