99 V70 P0446 trouble code

[vilified89]

Hi all,

My check engine light came on in my 99 v70 r type awd, I got a trouble code p0446 evaporative emission system vent control circuit malfunction, I tried installing a new gas cap hoping that would solve the prob on the advice from a coworker. I reset the code, two days later, light came on, same trouble code. Can anyone enlighten me on what part I need to repair this? Any help is greatly appreciated.

Thanks a bunch
V89

[FlyingVolvo]

Hi,

Here is a thread on volvospeed.com where someone was experiencing the same code. It's all related to the evaporative emissions system. If I'm understanding everything correctly, your code doesn't necessarily point to a leak, but it's more related to the electrics monitoring the Evap systen.

Problem found and fixed. There is actually one more solinoid in the EVAP system for a total of three pieces. You have the Evap Valve behind the radiator, you have the EVAP canister behind the fender infront of the front wheel
and you have The canister shut off solinoid mounted behind the fender, behind the front wheel. After I removed the dented fender, I found this solinoid and it turned out the ground wire got pinched and cut during the deer hit and that is why the CEL was tripping on. spliced and soldered the wire and everything is good again in Volvo land. I actually found a White fender (to match my white car) off of a 93 in a junkyard for a paultry $35 big ones. Picked up a new marker assembly for another $30, still got to pick up
a few broken clips for the moldings and I may get out of this pretty cheap and easy. The fender was filthy and I still have to wash it good to make sure the color matches good, if not I'll have it sprayed and blended.

http://volvospeed.com/vs_forum/index.ph ... ode-p0446/

[vilified89]

Thanks for your help, I appreciate it, now off to plan a course of action with my mechanic

[FCPEURO]

That code normally comes up when the purge valve goes bad. That would be the first thing I would look at.