Originally Posted by mlelah
My CEL is on (P0442 and P0455). It's been on most of the time, but sometimes goes off when I refuel. I've checked all the hoses, and replaced the fuel cap (but not pulled the gas tank). I understand that the Leak Detection pump may be wearing out. Is there a way I can check this? There is no code for the LDP so its electricals must be fine. Thanks.
If it was the LDP you would be getting the code for it. I forget the number.
What are those codes for?
You can unplug the LDP and see what codes you get.