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Q: MIL P0401 EGR Flow Error but no failure found on 2001 Toyota Camry

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Cleaned EGR Valve pintle and verified the diafram opens and seems to modulate at higher rpm and/or temp. Code is almost always active, but sometimes cleared for 20+ tests. Once in a while usually when gas low and very hot outside get P0446 Vapor Emissions. How do I fix and pass Ca Smog test????
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