So I finally got enough free time to get under my car to diagnose my P2009 cel code.

I removed the APV Motor and while cycling the power on and off I can verify there is no movement. I was told that the APV valves cycle by moving the position of the key to the "On" and back off.

I would like to verify the APV motor is bad since the part comes with a no return policy from mazda. My question is what leads do you need to connect the 12v current to. There are 5 total leads 2 on the top and 3 on the lower. Any ideas?

Also when I re-install the new motor do the valves need to be in any certain position? (Closed, Open). Which way do I have to turn it to set that position?

 

Fsm:

 

Thanks MM, think a 12v household battery would work to test the motor or should i butcher one of the power adapters i have laying around.

When re-installing the motor on the car do you know if i should have the ports opened or closed? does it matter?

 

I used a transformer from something that I had laying around the house.
Whenever I cycle the APV motor, I just keep it installed.
You can easily hear them cycling so there is no mistaken.
Here is a pic of what it'll look like:


I use a DPDT center-off switch to cycle it quicker and easier than it would be to swap the wires to change polarity.
This DIY video shows it in action and how you can wire one yourself if you care to:
https://www.rx8club.com/showthread.p...&highlight=apv

You should rotate the white gear fully clockwise so the magnet is roughly at 1 'o clock.
The magnet on the white gear is used to determine the positioning... which the sensor is in the motor itself

 

Yea, thats what I was thinking. I have the motor off the car already. I wanted to verify that carbon buildup was not the issue. I have a feeling that the heat of my downpipe might of caused the motor to fail over time. I had heat wrap on the downpipe as well as the heat shielding over the APV motor. I will attempt to further shield it this time.

I saw your video a while ago and it was very helpful.

Thank you for the gear position. I had a feeling the gear should be in a certain position. I couldn't find that anywhere.

 

At this position are the valves open or closed, I am reassembling my LIM so i need to position the gears correctly initially. hence the question.

From watching the video it was a little misleading as your initial position is about 6 'o clock, or are you considering the bottom of the LIM to be 12 o' clock, or was position disregarded in that demo.

Clockwise would be opening the valves correct?, below attached at fully clockwise what position is considered correct.

My interpretation of 1 0'clock


Your starting clockwise position in the demo


I can't find any documentation referencing initial gear positions
Any info is greatly appreciated.

 

It's in the thread. It has to be full clockwise with the magnet in the 1 O'clock position as in your first picture. This is the fully closed position and the default APV motor position when turned off. If you rotate it fully clockwise and the magnet in the gear is in the 6 O'clock position then the gear needs to be taken off and rotated 180 deg.

Since you had your LIM off to coat it I'm assuming you took it apart completely including removing all the APV actuation parts. The gear only fits two ways so as described above you can tell what is the correct position by rotating it fully clockwise to the closed position and making sure the magnet is located correctly. The fully CW closed position with the gear magnet located at 1 O'clock is the position that the APV motor needs to be installed at.


.

 

Thanks, wasn't sure if that was closed or open but seems like an unecessary question givin it can only be closed when going CW, regardless I still did it wrong and set it to 1 o'clock at CCW needless to say some verbose verbiage followed. Fixed now. Thanks again team

 

I went through the same thing 6 or 7 years ago so I can appreciate where you're coming from