Code P0440 - evap system

[blye]

I keep getting this code when I start the car after it is parked on a hot day. Purchased a new fuel cap, cleaned the surfaces and cleared the code with the scan tool. Code came back.

Problem is I need to pass emissions test next month.

I want to check the evap canister, solenoid and the lines. (are there 2 solenoids?) Is the evap canister and solenoid accessible without dropping the fuel tank? Where do I get to it? (I am guessing from the rear driver side wheel well?)

Also, when checking the evap solenoid in engine compartment, I broke the U-shaped tube which runs from the solenoid to the throttle body. It was extremely brittle. You can see the tube to the left of the arrow in the following picture:



Can I replace this tube with rubber hose? (I dont think this was the cause of the code).

Any other hints chasing down this code?

thanks

[Trinity]

Yes that tube can cause the error code you are seeing. The best way to track this one down is a smoke test. I have the same issue and am getting a smoke test for $35

[spoiledred94]

I had same code. Did many of the things you are doing like replacing visually failed vac lines. Didn't clear. Then I replaced the whole plastic/rubber vac harness that goes around the intake manifold hooking in here and there. The tech said it was like $100 but charged me only $35.

Problem and code immediately gone. There's threads around here on that.

[blye]

So I took the evap purge solenoid out and tested it. It was bad. The way I could tell was that I could blow a bit of air through it and when checking the resistance on the solenoid terminals it appeared to be shorted out. I put a new one in.

For that U-shaped tube, I got a piece of vacuum tube and connected it up.

Now just to wait and hopefully the code doesnt come back.. In hindsight I should not have cleared the codes, but let the computer clear the P0440 code itself. Now I have to wait until the entire computer system becomes "ready" before I can do the emissions test.

[Trinity]

So I took the evap purge solenoid out and tested it. It was bad. The way I could tell was that I could blow a bit of air through it and when checking the resistance on the solenoid terminals it appeared to be shorted out. I put a new one in.

For that U-shaped tube, I got a piece of vacuum tube and connected it up.

Now just to wait and hopefully the code doesnt come back.. In hindsight I should not have cleared the codes, but let the computer clear the P0440 code itself. Now I have to wait until the entire computer system becomes "ready" before I can do the emissions test.

It won't take long, mine was popping every other day or so. Let us know one way or the other.

[Trinity]

Did a smoke test today and found that the gas gap and tank seal were leaking...

[blye]

I noticed after I replaced my shorted out evap solenoid with a new one, the radio now keeps the correct time, no matter how long the car has been parked!! weird.
Before it would lose about an hour a day. I think the shorted evap solenoid sucked power continuously.

[spoiledred94]

Cool. I guess knowing there is another solenoid is old news. Glad every thing's working out on time blye.