330ci p0444

[steelers880]

Im new here...i have a 2001 330ci.
Just replaced ccv valve and all lines and now its throwing code p0444. Checked for vaccuum leaks with pressure test. ..none..

Is it possible i have something not connected to the right connector or possibly the purge vavle is stuck? ?

Please help...thanks

[MarcoZandrini]

P0444: Evaporative Emission Control System Purge Control Valve Circuit Open

It's not the engine's intake system that's causing the problem. Here's the skinny on this code:

"The Evaporative Emission System (EVAP) canister purge volume control solenoid valve uses a ON/OFF duty to control the flow rate of fuel vapor from the EVAP canister. The EVAP canister purge volume control solenoid valve is moved by ON/OFF pulses from the Engine Control Module (ECM). The longer the ON pulse, the greater the amount of fuel vapor that will flow through the valve."

[steelers880]

So order a new valve ??

[steelers880]

Ive done all my research and i still dont know what to do...never a problem until i replaced all my ccv lines...and they are all on..i pressure tested them ..


Help?

[steelers880]

Before i forget...is there a fuse for this solenoid ?

[steelers880]

I just replaced ccv lines and now it won't start.

Getting fuel at the rail. Getting spark. It started one time...won't idle correctly..jumps up and down between 3 and 1500k rpm.

New to these cars please help..
Thank you

[E39DaveE53]

Recheck all your ccv hoses, sounds like you left one off or loose creating a massive vacuum leak.

[steelers880]

Thanksdave...i checked twice...but i will check again tomorrow

[bmwbob89]

Check the wiring. That is a purge valve code. Open circuit. Make sure you didn't swap any connectors.

[steelers880]

Thats what i thought...checke my connections and they're all correct. Because i even tried to switch them and theyre all different. ..

Im lost lol

[steelers880]

Must be something though...very annoying...ive tried the following

Swapping connections
Unplugging maf.
Unplugging purge valve.

Never ever had an issue starting until i replaced the ccv then it barely started then idle like stated above. Then i had a burning smell ??? Been sitting since then

[snipez4664]

unplug your battery, wait a few minutes and plug it back in. May be pointless, but its somewhere to start. Based on the symptoms, it has to either be a massive leak from the CCV, or it a sensor. Make sure the CCV itself is seated in the large hole in the bottom center of the intake manifold. If it's not that, and you're sure all the hoses are plugged in, you have to check all of the sensors that are anywhere near where you were working. Even though you said you check, it almost has to be that a sure swapped sensor wasn't plugged in, or you swapped 2 (not sure its possible though). Look paticularly close that the intake vanos sensor, intake cam sensor, ICV and CPS. Might as well unplug them and plug them all back in. I've seen this happen a few times and it has always been a sensor not plugged in.

[steelers880]

U know what i think i may have only put one hex screw back in the ccv...

Will check

[steelers880]

Soooo now i have the problem figured out..my buddy who helped me put this ccv together had broken the clip on the bottom end of the breather hose that goes from the valve cover down to the ccv ? But it didn't look like the ccv it was silver in color...im totally lost now

Are all e46 330ci the same set up ???

[E39DaveE53]

Yes all M54 ccv are setup the same way, 1 valve and 4 hoses.

[steelers880]

Ok so i have that brand new line and with the tab broken. What can i do to just get it home...i have the brand.new purge valve here it came today

[snipez4664]

to just get what home? the car? the pruge valve?

[steelers880]

The car is at my work... i have 2 cars..

Anyhow. The thing is i want to get it home to work in my garage. Can i put that vac line on just enough to get it home.. wonder if it would hurt anything.

Of course i would replaced the purge valve since its a quick job

[steelers880]

Update.
I just replaced the pure valve evap canister whatever you call it.

Same problem.

I cleared the codes and now wont start...fuel at the rail..

No spark ? Wtf
This is so disturbing

[steelers880]

Still nothing...replaced the evap purge valve...same shit

[chalaka]

replaced the valve as well ..same code .. anyone can show how to test the connector to the valve?
12v to either pin? if it has any fuse? in the DME box close the driver wall? or .. glove box?

[rbelton]

This is a super quick job, here's the DIY to removing and replacing that purge valve to resolve the P0444 code: