[GreenFaleen]

Originally Posted by wadepetersen will the gas cap fix both or just the P0442 - Leak in Evaporative System Detected. code

442 is gas cap the 401 is all the stuff I posted earlier, sometimes a gascap will throw both codes ty it first but if you still get 401 (or its the only one your throwing) you need the pressure sensor, egr valve, or vacuum soleniod

[yellowstang6r]

Originally Posted by GreenFaleen Nope all you need to do is fix the leak and it will fix both codes. What is happening is fuel vapors that should be in the EGR system are being let out through the leak so your getting insufficient flow and the leak code. To fix it find the leak and replace whats leaking. If it is the filler hose they sale it at autozone and a shop will put it in for about 50-80 bucks depending on my hard of a swap it is

So if in fact it is the filler hose leaking, should i run my car low on fuel before taking it to the shop to get replaced or just keep it at a normal level?

Also, why is it only leaking after i fill it and how does that cause the codes?

[GreenFaleen]

Originally Posted by yellowstang6r So if in fact it is the filler hose leaking, should i run my car low on fuel before taking it to the shop to get replaced or just keep it at a normal level? Also, why is it only leaking after i fill it and how does that cause the codes?

uhh just take it normal they will drop the gas tank. And it only leaks when you fill up cause thats the only time it has gas in the hose.

For the codes your EGR valve and EVAP system recirculate unburnt gas fumes in order to give better emissions and gas miliage. If you have a leak somewhere in the system those gas fumes escape which causes you to get not enough pressure and flow to the EGR valve 401, and it notices a leak in the EVAP system 442

[yellowstang6r]

Originally Posted by GreenFaleen uhh just take it normal they will drop the gas tank. And it only leaks when you fill up cause thats the only time it has gas in the hose. For the codes your EGR valve and EVAP system recirculate unburnt gas fumes in order to give better emissions and gas miliage. If you have a leak somewhere in the system those gas fumes escape which causes you to get not enough pressure and flow to the EGR valve 401, and it notices a leak in the EVAP system 442

Damn GF, ur so smart

[GreenFaleen]

Originally Posted by yellowstang6r Damn GF, ur so smart

lol nah Im a dumbass ask my calc teacher I just have been on this forum so long stuff got inbedded in my brain

[yellowstang6r]

Originally Posted by GreenFaleen lol nah Im a dumbass ask my calc teacher I just have been on this forum so long stuff got inbedded in my brain

Well at least ya got something u'll use throughout ur life haha. Calc's not too bad either, just not commonly used in day to day life.

[GreenFaleen]

Originally Posted by yellowstang6r Well at least ya got something u'll use throughout ur life haha. Calc's not too bad either, just not commonly used in day to day life.

lol yeah cars are my thing I guess. and I use calc everyday Im in school to be a Mechanical engineer

[yellowstang6r]

Originally Posted by GreenFaleen lol yeah cars are my thing I guess. and I use calc everyday Im in school to be a Mechanical engineer

Yes, then u would def need it. I'm going to be a Physicians Assistant so i dont really need it but took it in HS anyway. Where u at for school?

[GreenFaleen]

Originally Posted by yellowstang6r Yes, then u would def need it. I'm going to be a Physicians Assistant so i dont really need it but took it in HS anyway. Where u at for school?

North Carolina State University