Got DTC 0705 & 0903 says its something with the EVAP systems any ideas on whats wrong with it?

 

0705: EVAP System leak
0903:EVAP Canister vent control valve circuit fault
I would go through and check to make sure there is no loose hoses. Also check all electrical harnesses make sure they have a good connection.

 

just got rid of mine last week for good!! u need to buy the carbon cannister (i think thats the name) with the valve connected to it. Its the gray box near your left rear tire. i found mine at a junk yard last week, took a chance on it working, and raplaced the old with the junkyard one, no more codes!!

 

Inside the canister is a valve - it sometimes get stuck. Take it apart, take out the EAV valve, spray it with WD-40, make sure it's not stuck, put it back in. Clear codes, and presto, it's all goooooood.

 

Just went out and lubed up the EAV valve, see what happens, thanks

 

was that for 0903?

 

I had 0705 and I just replaced the valve. I tried the wd-40 trick, but it wouldn't budge. I had my CEL on for like 3 years and just now decided to go ahead and fix it. It was like $90? at the dealership. It cleared the code.

 

Yeah I have a feeling my valve is shot. I was able to free the flang inside with wd-40 and move back and fourth (have to wait and see). yeah 90 bucks for a new one thats lame.

 

I have a question about how the valve is supposed to be when you take it of. When I took it off the plunger was extended out or open. I pushed it down a couple of times to work in the wd-40 and it was poping back open easier each time I did it. Is it supposed to be open when you take it off? Doesn't it close electricly?

 

I have no idea. I didn't look very closely at the new one. I just took the old one off and replaced it. Sorry.

 

After taking the canister out and lubing the valve up, I managed to get rid of the 0705 DTC but 0903 comes right back up right when I start my car. Before I could clear the code for like 5 days. Now 0903 puts up right after I clear it. I'm thinking the Vacuum Valve is shot electricly.