I just checked myu ECU and i had 4 codes pop up. 0705 and 0903 are both EVAP codes but i have no idea why they are coming up and how to fix them. I reset my ecu and they poped up again after 5 min. I am also throwing a knock sensor code as well as a 1050.

What should I do? How serious are these codes? What can i do to fix them?

Please HELP

 

Read the stickies, post a description of the codes and then post back here...or phenryiv1 will lock this

 

work on that 0903 first, it may be as simple as replacing that valve on the charcoal canister.

the 0705 looks more like a jackpot code, and doesn't really tell you a whole lot.

0304, the knock sensor code, just get a new knock sensor

and i didn't see 1050 in the sticky, so you should pull your codes again and make sure thats right.

 

The cheapest 1st step for evap codes is the gas cap, then get your fuel pressure checked, Ive had those codes it turned out I had a fuel pressure leak in my gas tank filler neck. Secondly I think you meant 0150 not 1050; that is the 02 sensor on your y pipe, its the front left one at the front of the pipe.