06-30-2011, 08:01 PM
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#1
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Registered User
Join Date: Nov 2006
Location: Bastrop, TX
Posts: 705
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B0407, Air Flow Control # 2 - heater - low signal input
it would help if I had your model year, CC displacement to find C code.
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2002 S
Pedro rear stabilizer bar, CF strut braces, Maxspeed headers with 100 cell cats, Fabspeed cat bypass pipes, H&R springs with M030 setup, TRG rear links, EVO air intake, B&M Short shift kit, Raby IMS upgrade, Raby underdrive pulley
Last edited by jhandy; 06-30-2011 at 08:35 PM.
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06-30-2011, 08:04 PM
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#2
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Registered User
Join Date: Apr 2009
Location: Australia
Posts: 328
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Ok thanks, what exactly does that mean? Something wrong with the heater?
Car is a 1997 2.5l base model.
Cheers,
Sam
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06-30-2011, 08:35 PM
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#3
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Registered User
Join Date: Nov 2006
Location: Bastrop, TX
Posts: 705
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The C code is going to be a little harder to crack. Someone here that has a Porsche OBD service manual that can look it up.
But basically it is a error with something that gets input from the chassis. In my limited experience it is commonly the ABS system.
with the boxster, it does not have traction control, no roll sensor, manual trans. there really not many other choices aside from temp sensors, and speed sensors.
Also it could be a non USA code, in which case, the Piwis manual will tell us the code.
Porsche tech guys usually gaurd this book like it is the bible and it is not easily had.
__________________
2002 S
Pedro rear stabilizer bar, CF strut braces, Maxspeed headers with 100 cell cats, Fabspeed cat bypass pipes, H&R springs with M030 setup, TRG rear links, EVO air intake, B&M Short shift kit, Raby IMS upgrade, Raby underdrive pulley
Last edited by jhandy; 06-30-2011 at 09:26 PM.
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06-30-2011, 09:06 PM
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#4
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Registered User
Join Date: Nov 2006
Location: Bastrop, TX
Posts: 705
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I have no idea what it means. - just a wild guess- A air flow selector thingy motor or sensor in the heating/AC system is failing or has failed.
But i can tell you that it is a DTC (diagnostic trouble code) , these codes can be one time things. The car could be having a bad day....I would find the answer to the P code, and then clear all codes. Wait to see if it comes back.
I think that your C code may be a Euro/Asia spec code. I can not find it in any of my books.
__________________
2002 S
Pedro rear stabilizer bar, CF strut braces, Maxspeed headers with 100 cell cats, Fabspeed cat bypass pipes, H&R springs with M030 setup, TRG rear links, EVO air intake, B&M Short shift kit, Raby IMS upgrade, Raby underdrive pulley
Last edited by jhandy; 06-30-2011 at 09:17 PM.
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06-30-2011, 09:21 PM
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#5
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Registered User
Join Date: Apr 2009
Location: Australia
Posts: 328
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Really appreicate your response, I too hope it was a one time code!!!
Will get onto that coil pack tonight and see if I can make that code jump numbers (or even better - vanish...) I can only hope its something as basic as a dead coil or even a coil not plugged in correctly.
Sam
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07-01-2011, 02:15 PM
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#6
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Registered User
Join Date: Apr 2009
Location: Australia
Posts: 328
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Just swapped coils and plugs over. Car started up nicely with no errors. I took the oil filler cap off while it was running, came off easily but the car stumbled and nearly stalled with this cap off. Picked right up as soon as I put it back on.
Is this signs of a functioning AOS?
Sam
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07-01-2011, 02:24 PM
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#7
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Registered User
Join Date: Nov 2006
Location: Bastrop, TX
Posts: 705
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do you have a oil mist/dirt all over the top of your motor? Do you have liquid oil in the throttle body? (not allways true) do you have a sucking vacum sound with the cap off and car running? Does your car seem to use oil more than it regularly does?
If yes to these, then the AOS is not working well. If it fails, you will know. Plumes of white smoke will come from your car. or lock up with oil in the cylinder ( this could kill the motor).
From my understanding, AOS is like the water pump. Replace it every X years. They are cheap. motors or tow trucks are expensive.
__________________
2002 S
Pedro rear stabilizer bar, CF strut braces, Maxspeed headers with 100 cell cats, Fabspeed cat bypass pipes, H&R springs with M030 setup, TRG rear links, EVO air intake, B&M Short shift kit, Raby IMS upgrade, Raby underdrive pulley
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