Map sensor location

JuiceQuadre · 11-27-2017, 09:21 AM

Guys when we talk about map sensor on our cars, do we talk about number 16 in the first picture listed as Temperature sensor air or number 7 in second picture listed as Fuel injection system-pressure sensor ?

Always thought it was the first one. Or is it actually different on eu cars? seems unlikely

floydarogers · 11-27-2017, 10:20 AM

Never heard of a "map" sensor. The DDE decides which of several "map's" to use depending upon a set of values. Those values include temperature (IAT - 16) and airflow. Actual airflow is determined by the Mass AirFlow sensor (MAF); perhaps that what you're thinking of? I believe that it's integrated in the throttle (mounted on the EGR valve, I believe.)

JuiceQuadre · 11-27-2017, 10:28 AM

Quote:

Originally Posted by floydarogers

Never heard of a "map" sensor. The DDE decides which of several "map's" to use depending upon a set of values. Those values include temperature (IAT - 16) and airflow. Actual airflow is determined by the Mass AirFlow sensor (MAF); perhaps that what you're thinking of? I believe that it's integrated in the throttle (mounted on the EGR valve, I believe.)

no, i didnt mean maf, i know where maf is located, its just besides the intake box(with air filter).. well, map sensor as in manifold absolute pressure sensor.. i understand that this data could be provided by more than one sensor. but iv read and heard people talking about map sensor on our cars, so im curious which one they mean.

TDIwyse · 11-27-2017, 11:34 AM

Quote:

Originally Posted by JuiceQuadre

no, i didnt mean maf, i know where maf is located, its just besides the intake box(with air filter).. well, map sensor as in manifold absolute pressure sensor.. i understand that this data could be provided by more than one sensor. but iv read and heard people talking about map sensor on our cars, so im curious which one they mean.

7 is the MAP sensor. In TestO the parameter is: STAT_LADEDRUCK_WERT

The IAT (Intake Air Temp) sensor is: STAT_LADELUFTTEMPERATUR_WERT

JuiceQuadre · 11-27-2017, 12:19 PM

Quote:

Originally Posted by TDIwyse

Quote:

Originally Posted by JuiceQuadre

no, i didnt mean maf, i know where maf is located, its just besides the intake box(with air filter).. well, map sensor as in manifold absolute pressure sensor.. i understand that this data could be provided by more than one sensor. but iv read and heard people talking about map sensor on our cars, so im curious which one they mean.

7 is the MAP sensor. In TestO the parameter is: STAT_LADEDRUCK_WERT

The IAT (Intake Air Temp) sensor is: STAT_LADELUFTTEMPERATUR_WERT

thank you

Yozh · 11-28-2017, 10:58 PM

And just to add in case it’s useful. When MAF fails, DDE uses substitute values from MAP and IAT to calculate fueling.

floydarogers · 11-28-2017, 11:32 PM

Quote:

Originally Posted by TDIwyse

7 is the MAP sensor. In TestO the parameter is: STAT_LADEDRUCK_WERT

The IAT (Intake Air Temp) sensor is: STAT_LADELUFTTEMPERATUR_WERT

Thanks, TDIwyse. The etymology of word usage is beyond obtuse.

JuiceQuadre · 11-30-2017, 01:59 AM

Quote:

Originally Posted by Yozh

And just to add in case it’s useful. When MAF fails, DDE uses substitute values from MAP and IAT to calculate fueling.

Thanks =)

JuiceQuadre · 11-30-2017, 11:32 AM

Anyone did cleaning or exchanging of MAP sensor?

I cleaned it today and found it very hard to get it back into the hole, there are no screws or anything of that sort. It appears to be just pull and push back

Anybody knows if its supposed to "click" back in? I did manage to get it pretty much all the way by repeatedly pressing down on it but still feels like it could go a tiny bit lower into the o ring.

anyone?

335dsleeper · 11-30-2017, 11:44 AM

It’s just a rubber grommet. Push it In and you’re done.

Quote:

Originally Posted by JuiceQuadre

Anyone did cleaning or exchanging of MAP sensor?

I cleaned it today and found it very hard to get it back into the hole, there are no screws or anything of that sort. It appears to be just pull and push back

Anybody knows if its supposed to "click" back in? I did manage to get it pretty much all the way by repeatedly pressing down on it but still feels like it could go a tiny bit lower into the o ring.

anyone?

11-27-2017, 09:21 AM	#1
JuiceQuadre Second Lieutenant 54 Rep 222 Posts Drives: E92 335D 2006, F30 335i 2014 Join Date: Oct 2016 Location: EU iTrader: (0)	Map sensor location Guys when we talk about map sensor on our cars, do we talk about number 16 in the first picture listed as Temperature sensor air or number 7 in second picture listed as Fuel injection system-pressure sensor ? Always thought it was the first one. Or is it actually different on eu cars? seems unlikely
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11-27-2017, 10:20 AM	#2
floydarogers Curmudgeon and Pedant 690 Rep 3,489 Posts Drives: 2010 335d, 2014 328d Join Date: Nov 2012 Location: Bellevue, WA iTrader: (0)	Never heard of a "map" sensor. The DDE decides which of several "map's" to use depending upon a set of values. Those values include temperature (IAT - 16) and airflow. Actual airflow is determined by the Mass AirFlow sensor (MAF); perhaps that what you're thinking of? I believe that it's integrated in the throttle (mounted on the EGR valve, I believe.)
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11-28-2017, 10:58 PM	#6
Yozh Colonel 870 Rep 2,615 Posts Drives: 2011 335d M-Sport Join Date: Mar 2014 Location: Wet Coast iTrader: (4)	And just to add in case it’s useful. When MAF fails, DDE uses substitute values from MAP and IAT to calculate fueling.
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11-30-2017, 11:32 AM	#9
JuiceQuadre Second Lieutenant 54 Rep 222 Posts Drives: E92 335D 2006, F30 335i 2014 Join Date: Oct 2016 Location: EU iTrader: (0)	Anyone did cleaning or exchanging of MAP sensor? I cleaned it today and found it very hard to get it back into the hole, there are no screws or anything of that sort. It appears to be just pull and push back Anybody knows if its supposed to "click" back in? I did manage to get it pretty much all the way by repeatedly pressing down on it but still feels like it could go a tiny bit lower into the o ring. anyone?
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