Cel 0442 Need Some Help
 

Alrighty, well I've been getting this 0442 code for about a month now. Originally I thought it was the gas cap. I bought a new one and reset the OBD2 system and it comes back on after 100 miles. The only thing I did right before this code came on was remove the AEM ByPass Valve from the intake (I reset the ECU after this). I have checked all of the hoses and nothing seems to be kinked or clogged. I am really out of ideas besides going to the dealer and purchasing a new Purge Control Valve and see if that fixes it. Has anyone ran into this issue before? BTW the code means: Emission Leak Detected (Small Leak)

I have the same code... do you hear any hissing around the IM?

Nope, no hissing sound. From what I have read this could be caused by a few things like:

- Fuel Cap
- Fuel Pressure Sensor
- Leak in Tank Seal
- Purge Control Valve broken
- Leak in lines going to IM from Purge Control Valve

I think there may be more but it makes it very hard to troubleshoot.

Check your purge Valve
OEM part # 28910-22040
They go,... lots!
Crappy part is it's like over $100 eek.gif

Damn thats what I thought........ I'll have to look around for one I guess.

I know a website that can get it for cheaper.

LOL

I assume you mean kSpec? If it is let me know and I'll drop David an email.

Duh.

LOL

Contact him.

http://www.hmaservice.com/webtech/iindex.a...0655#_394880655

http://www.hmaservice.com/webtech/iindex.a...sp?id=394870416

I had seen and looked at that first article but nice find on the second one. Thanks!