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2000 cavalier......I was just wondering if it is normal after probably 2 years of a canister vent solenoid not being hooked up,for their to be a strong odor of gas coming from the exhaust pipe after being hooked up after all that time. I got the code about two years ago and replaced the gas cap,and it didnt work so I just let it go. I just recently realized the wires from the solenoid to the harness were broke. The car seems to be running really good even noticed the slight miss I had has gone away. I cleared the code and so far it hasn't came back on. Thanks in advance


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Yes, it is very possible. With the EVAP vent solenoid not working for so long, the system was not functioning correctly. It was not venting and closing properly, so the canister was probably full of fuel and now that it is working, the engine is pulling vapors from the canister when it is suppose to, and since it is so loaded up, the engine is getting way too much vapor and running rich.

It may take a while for all the vapor to be purged from the EVAP canister, so just drive it normally for a few days and see if the smell is gone or going away. The check engine light may come with an oxygen sensor code, so i would just have it cleared and continue to drive normally.
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Just like you said the smell is gone and the car is running great. The light has not come back yet. Thanks for the response


   
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