2012 Honda Pilot - CEL question

honda

#1

My check emission light is on. Last month I took it in for the same problem and was told there were webs to clean out. What else can cause this?


#2

Literally hundreds of things can set the light. The error codes need to be read - many auto parts stores will do this for freee - and you can post them here in their form of P1234 and we will try and help.