Author Topic: MAP or MAF or both?  (Read 4868 times)

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Offline stevena1986

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MAP or MAF or both?
« on: August 06, 2020, 03:33:30 PM »
Hi all,

Firstly, I know little about cars so please excuse my ignorance! 

OBD error code Manifold absolute pressure (MAP) sensor/barometric pressure (BARO) sensor correlation.  I own a 2005 Mazda 3 TS2 1.6 diesel.  Every now and then car will go in to limp mode and not go over 3000 RPM. 

Question 1 - I know where the MAF sensor is on the car and will be removing it, inspecting and cleaning it this weekend.  I have no idea however where the MAP sensor is located.  I purchased a Haynes manual but it only shows petrol engines! 

Any help, assistance or opinions welcome!

Thanks,
Adam


Offline red_imps_2003

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Re: MAP or MAF or both?
« Reply #1 on: August 08, 2020, 10:41:49 PM »
Do you know if the engine in yours is the same as in the gen 2? If so, I can post a pic of mine with it circled. In mine it's on the left as you look into the engine bay from the front bumper. I don't know the technical terms either, but it pokes into the main air pipe after it leaves the turbo but before it goes into the engine.
So I was stood there trying to work out why the cricket ball was getting larger and larger...and then it hit me.

Offline red_imps_2003

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Re: MAP or MAF or both?
« Reply #2 on: August 08, 2020, 10:47:47 PM »
Here we go. https://drive.google.com/file/d/1Knl2MWhO31EVJQiMdlHLn4wI70r8WcQU/view?usp=drivesdk. I can't circle it on my phone but I think it's the component near the bottom right of the photo held in by a torx screw with a red dot in the middle. May well be located elsewhere on a gen 1 model, though.

This is from memory when I took it off to spray EGR valve cleaner in the intake. I think I googled the part number and it came back Mass Air Pressure sensor. Would have to check in daylight if you need me to.

Good luck.
So I was stood there trying to work out why the cricket ball was getting larger and larger...and then it hit me.

Offline stevena1986

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  • Transmission: Manual
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  • Year: 2005
Re: MAP or MAF or both?
« Reply #3 on: August 13, 2020, 03:57:52 PM »
Thanks for your help.  I will take a look tonight and get back to you.

Thanks again

Offline stevena1986

  • S Class
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  • Body: Hatchback
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  • Engine: 1.6L
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  • Model: Mazda 3
  • Transmission: Manual
  • Trim: TS2
  • Year: 2005
Re: MAP or MAF or both?
« Reply #4 on: August 13, 2020, 04:09:30 PM »
Would you also happen to know where the Barometric pressure sensor is located too?  I am not savvy with gen of engines etc but I can safely say my engine looks the same as yours in the picture you have kindly provided  :)

I am getting a P0069 fault on the car and it goes in to limp mode often.  I have cleaned out the MAF and would like to clean out the MAP and Barometric pressure sensor also before I satart replacing parts.

Thanks again.
Adam

Offline red_imps_2003

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Re: MAP or MAF or both?
« Reply #5 on: August 16, 2020, 09:20:46 AM »
Ooh, I've not even heard of that one I'm afraid. Sorry. I will post again if I find out.
So I was stood there trying to work out why the cricket ball was getting larger and larger...and then it hit me.

Mazda 3 Forums UK

Re: MAP or MAF or both?
« Reply #5 on: August 16, 2020, 09:20:46 AM »