dssur
+1y
yes, I should have mentioned, if it triggers the SES (and it may not, like some guys are saying) it wont make it run worse or better, its just an evaporative control sensor that picks it up. I've had GAS CAPS turn my SES light on before, what a pain in the ass OBDII is. Lately I've been getting P0420 catalyst effiecincy SES lights, which just means that for a freaking split second the catalyst wasnt working at full efficiency. I'm glad I have a code reader, I cant imagine how much this would cost if the dealer saw it every time the light came on... Probably a couple hundred at least just in parts.