Error Code P2009
 

My daughters 2005 Mazda3 has a P2009 error code with CEL on.
Can anyone please help?

P2009 = variable tumble solenoid circuit low
The solenoid is connected to battery power on one side, and the PCM on the other side... it pulls the PCM side to ground to energize the solenoid. When it turns off it monitors for the signal to go high again (since one side is battery and the PCM side should float high).
It turns on the error light when the signal stays low.
This means there's a burned out solenoid (no connection), bad battery connection at the solenoid, or a short in the wiring. Poor ground at the PCM (control module) can cause this as well.

The valve is in the vacuum system on the air intake manifold - located where the air intake attaches to the engine - front near the airbox. But from it's location i'd assume it could be a bad electrical connection from moisture hitting it (corrosion), or maybe got disconnected if the car went in for service.

No time to send a pic now, have to get to work. But if you're a do-it-yourself-er let me know and I can add a pic to the post.

Good luck

If you could send a picture that would really help! I'm trying to help my daughter by fixing her car. I really appreciate any help.

Anyone have a picture of the 2 connectors I'm looking for??????????????
Anyone??????

Sorry for the delay, had a busy weekend. See the attached pics for what was in the manual.

Good luck

Thanks for the info. I have pulled both connectors apart, cleaned and re-installed. Disconnected battery to reset fault. After about 30 miles the CEL comes back on...P2009...Does anyone have any further ideas that I can do? Thanks
Also, where is the PCM?

Did you ever get this problem fixed?

I just got this code last week. Wondering if this was fixed and if anyone else experienced this p2009 code as well.

My mazda3 sometimes doesn't start. Not even a sound, and most times everything is normal. Just odd. Engine light came on and this is the reading that came up. I do notice when it idles the engine idles up and down and gives off the feeling that it will shut off. But again this happens sometimes and not all the time.

This pic is off a Mazda 3S 2.3L, I'm troubleshooting a TB issue with a P0507, pulled to check vacuum issues and received this code one disconnected.

P009 code is vacuum solenoid. Pic description, 18-740H/18-741C on top of page. One of these are bad.

Hope that helps.

~Mud

* left side box, picture rotated when uploaded?

Awesome, thanks a lot! I replaced the solenoid and now everything is good. Thanks!

Glad to hear it!
Which one did you end up replacing and how much?
So people may know more.

Regards,

~Mud

It was just a purge valve solenoid. It came with the hose. It was quite easy to replace actually. Cost was $130 CDN.

The error can also come from stripped wires so we searched out any wires that could have had
rubbed against metal.

code P2009
 

First post..
My daughters car is getting this code now so I'm about to replace solenoid. I can see that it has 2 vacuum lines and a electrical connector. My question is after that how is the darn thing mounted? looks to be a single nut with the mounting bracket? Yes I do have the maintenance manual but it doesn't show R&R of it. I read earlier post wanting to post pictures of the solenoid so here are a few I took. Hope it helps the next person. By the way her Mazda 3 stats are 2005, 175000 miles 2.0 liter.

P2009 code
 

Finally got around to replacing the seniold valve today. Too easy 4 vacuum lines 2 plugs. Mounted with 4 star headed screws.

So that fixed your p2009 code right? i found that part you replaced for 40 dollars but i dont want to waste time and money of course.