Defination for an evaporator canister. (ZT)

An evaporative canister is part of the evaporative system that is within the emission system. Hydrocarbons are a form of pollution that gasoline releases as it evaporates or after is is burned. While fuel is stored inside the tank, fumes build up and are retained inside this canister. The canister contains charcoal that absorbs the hydrocarbons. When the engine is started, a valve opens that allows fresh air to come in and purge the fumes (hydrocarbons) into the air intake and then into the combustion chamber for burning. I understand that more hydrocarbons are released into the atmosphere by leaving your fuel cap off, than what comes out of your tailpipe while the engine runs. If there is a leak anywhere in the evaporative system, such as a bad hose, canister leak or leaving the fuel cap loose, the check engine light will set.

Personally, I think you should fix it before doing the emission test.

所有跟帖： 

• DEALER 已经把我的CODE ERASE了, 灯也不亮了 -questionguy- ♂ (32 bytes) () 11/13/2007 postreply 06:55:10

• DEALER reset the computer, but not change out the part. -色大胆小- ♂ (215 bytes) () 11/13/2007 postreply 07:13:57

• P0446 是一个电磁阀不工作,换一个$60 -mengjian- ♂ (34 bytes) () 11/16/2007 postreply 17:14:33