I did a google search and I couldnt find a difinitive answer to my cel issues. My car just threw p0401 and p0462. It started idling weird a few months ago and I chalked it up to the EGR being gay. I havent cleaned it yet, however it never threw these codes until now. Would a messed up egr cause p0462 or is there another issue I should worry about other than the egr?

 

P0462 is a fuel Level circuit voltage Low - fuel gauge work right? do some wiring recently? possible short. should not be connected to P0401 that is a EGR fault code.

 

Actually i was working on hooking up the wideband 9 pin seriel to usb when i blew a 7.5 fuse. I replacedthe fuse right after and disconnected the wideband. The cel turned off, then turned on again. Could it be that the p0462 was stored from before, and showed back up when the egr threw a code?