Human genetics: Pleiotropic mutations. Hannah Stower. A large-scale analysis of SNPs and genes that are reported to be associated with common complex diseases and traits has found abundant pleiotropy: that is, each individual gene mutation may have a role in multiple diseases. large-scale analysis of SNPs and genes that are reported to be associated with common complex diseases and traits has found abundant pleiotropy: that is, each individual gene mutation may have a role in multiple diseases.
EVAP Vent Valve. The evaporative canister vent valve not only allows the fresh outside air to the EVAP canister during the purge modes, but also allows the diagnostic to pull a vacuum on the fuel tank by closing the vent valve. This valve is normally open. EVAP Canister.
This is called the Evaporative Emissions Vapor Cannister Vent Valve or Purge Solenoid. Depends on whet book you are looking at. If you have replaced this valve, the look at the Vapor Management Valve under the hood. This valve allows fuel vapors back to the engine.It will also cause the same concern and code. Below is a picture of it. It is under the hood near the drivers side valve cover near the exhaust manifold and brake booster.f you have replaced this valve, the look at the Vapor Management Valve under the hood. This valve allows fuel vapors back to the engine. It will also cause the same concern and code. Below is a picture of it.