SES light w/ code help

[sgtmac]

So my check engine light came on, code is P0440, tried a search but was unable to find any info.

I my PCV is making a wierd/new sound, so I am hoping it's that. Anyone have any ideas otherwise.

Thanks

 

[_Dylan_]

P0440 is a manfunction or leak in the evap system.

I'm not sure if a bad PCV would cause the code, though. I would assume it is considered part of the EVAP system seeing how it pipes crankcase fumes into the intake.

I would start by replacing it. The PCV is pretty important on a car.

 

[sgtmac]

Thats the plan, just wondering if anything else is a common faliure?

Thanks

 

[_Dylan_]

Not that I know of. Sometimes a loose gas cap can cause an evap code.

 

[Tommy 874]

I was told code p0440 was caused by the gas tank pressure sensor.

 

[SunlitComet]

since you have a 1998 check your gas cap. if that was the problem it will go away in about 1-2 drive cycles. and pcv may hiss or buzz or rattle a bit if that is what you hear.

 

[sgtmac]

since you have a 1998 check your gas cap. if that was the problem it will go away in about 1-2 drive cycles. and pcv may hiss or buzz or rattle a bit if that is what you hear.

I did hear a buzz, but I didn't hear it before so I figured I would change it anyway.

I will loosen, and re-tighten the cap, see if that helps.

It seems this code could be a bunch of stuff, any way to narrow it down, or check usual suspects? I hate to start throwing parts at it.

 

[SunlitComet]

wait and see first. the trouble shooting chart for this code is really long and tedious.

 

[sgtmac]

wait and see first. the trouble shooting chart for this code is really long and tedious.

That figures

 

[Milky1112]

Most of the Evap codes i've seen, replaced gas cap fixed them... (I worked at Oreilly for a while and changed several for that reason) no more codes..