p0455 is the code what could it be. i have found the secondary air pump unpluged would this cause that. and i have seen a p0411 come up too. i erase the codes the light stays off until i set still at idale for a long period.

 

P0411 is the secondary air pump which is probably the problem which is linked to the EVAP system hence the code P0455

 

fixed the secondary air pump no lightas of yet.