P0440 and P0442

[AleroDrime]

I've had these codes for a while, my gas cap is a locking one that is new and i know how to use it so thats not my issue, any suggestions for what to check? its the ecotec

[Nate's Alero]

I've had these codes for a while, my gas cap is a locking one that is new and i know how to use it so thats not my issue, any suggestions for what to check? its the ecotec

but the gas cap could not have the channels for the BBEVAP get a stock

[wrestlingandrunning]

^^^^I have a locking gas cap with no issues.

[AleroDrime]

ive had the gas cap for over 8 months, im sure its not the gas cap, the car has been scraping alot on the mud road to the house i stay at on weekends

[Nate's Alero]

check Downstream O2 connection

[AleroDrime]

from the 02 sensor to the throttle body?, nate hop on facebook, maybe u can give me some further detail there on chat

[jackal2000]

check the hoses running to and from the evap canister. sometimes they crack and then obviously leak.

[AleroDrime]

ok, wheres it located it at, i knew where that was on my ford

[jayson_waltz]

up right by the gas tank

[Redog]

Put the stock one back on and be done.

Part of PA inspection is a gas cap pressure test. I never got any codes, but my car always failed emissions for a bad cap