The Check Engine Light may illuminate with a stored code P2422. Our technicians tell us this can be caused by spider webs in the EVAP system charcoal canister vent hose. Acura has made available a spring to install inside the vet hose to correct this issue.Google+
Car Problem Reports
Acura TSX Check Engine Light With Code P2422
Acura TSX Problem
Average Mileage: 45,285 mi (29,000 mi - 65,000 mi)
Visitor, 2007 Acura TSX, 46,650 mi
Same error code, OBDII P2422, and same cause, spider webs (in more than one of the EVAP hoses). Honda issued SB 08-87 to address this problem in 2008 & 2009 models. It states the hoses have to be cleared then a spring added to the EVAP system. My 2007 Accord had the spider problem, but Honda did not issue a SB for it and I think the EVAP system changed starting with the 2008 model (no spring fix for the 2007). Honda refused to to give me any financial relief because the problem occurred in year four (warranty for CT cars is 36 month or 50K miles for manual transmission models (LEV2 emission rated). Note that AT versions of the Accord carry a PZEV emissions rating that carries a 15 year, 150K mile warranty on the emissions system in 5 states, including CT.
The emission light went on, I have an extended warranty but since they didn't have to replace a part they would not pay for the diagnostic fee of $130. the spider was clogging the vent or something. They ordered a special screen that Acura makes which leads me to believe they know there is a problem.