Car Problem Reports

Acura TL P04021 Code re: EGR Insufficient Flow

 
  • 021860, , 90,000 mi
     Rookie

    No need to replace the EGR Valve when this code appears; the valve itself is still good. The code appears because the flow is insufficient. Clean out intake manifold as shown here: http://www.youtube.com/watch?v=bOnoJFiwDKw

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