P04021 Code re: EGR Insufficient Flow on Acura TL

Average mileage: 107,000 (90,000–124,000)
Engine affected: 3.2L V6
2 model years affected: 1998, 1999
2 people reported this problem
1 person shared problem details
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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