YACT: Autozone pulled 3 codes OBDII codes on a coworkers 2001 Toyota Corolla...

[Red]

Girl at my work has a 2001 Corolla 5-speed, 40k miles... she is from Venezuela and knows nothing about cars and doesn't have access to work on it. Yesterday she said her check engine light came on so I told her to go to Autozone to pull the codes. Today she came into work with 3 codes with diagnosis and here they are:

Code: P0440
"The PCM has determined that a malfunction exists in the evaporative emission control system."

Code: P0441
"The PCM has determined that the purge flow in the evaporative emission control system is incorrect for the current engine operating conditions."

Code: P0446
"The PCM has determined that a malfunction exists in the electrical circuit for the vent control in the evaporative emission control system."

So all 3 have to do with the evap. emission control system. Her toyota dealership said it sounds like a vacuum leak? Roger or anyone else have any idears? Thanks guys.

 

[amdforever2]

out of warranty too

🙁

 

[nwfsnake]

First Guess: She left off the gas cap, or didn't tighten it till it clicked. 😉

 

[flot]

Well, if the codes are accurate, it sounds like code #3 is the problem that is causing code #1 and #2. Perhaps she should look into replacing the "vent control" on the evap system...

That seems like it would clear #1, and probably #2. (again, assuming they aren't all wrong, which is possible)

Edit: Funny thing, I had the common chrysler "your gas cap is off" vent leak code, and I let it go for a week or two, then I was under my truck changing the oil and noticed that a huge vacuum hose was just dangling around down there. Plugged it back in and no more code. lol

 

[scorp00]

Go to some corolla forums and see what the codes really mean. On my old car i got the check engine light, and found out it was a stupid exhaust sensor that clogged up. Not worth my money to replace it so I just drove with it on til I got rid of the car.