Car Problem Reports

Acura TL P04021 Code re: EGR Insufficient Flow

Acura TL Problem
2 Reports
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Model Years Affected: 1998, 1999

Engine Affected: 3.2L V6

Average Mileage: 107,000 mi (90,000 mi - 124,000 mi)

  • , , 90,000 mi

    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:

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