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View Full Version : Where Is the inkake air temp sensor! plz tell


kenika65
09-15-2009, 08:59 PM
Have a Code of intake air temp sensor....



LOL i cant find where it is located...


Please help!!!

doitover
09-15-2009, 09:38 PM
I think it is in the AFM.

kenika65
09-15-2009, 10:16 PM
in......

1991 E30 M42
09-15-2009, 10:37 PM
yes it is in the afm

kenika65
09-15-2009, 10:44 PM
Thanks! Quick response's.

roundel318
09-16-2009, 04:28 PM
+1 in the AFM

Deftones
09-16-2009, 05:56 PM
in the afm, it's big less than 2mm and has 2 little wire keeping it, it's on the afm intake before the flap

M42_Jester
09-17-2009, 12:17 AM
any pictures for reference?

kenika65
09-17-2009, 01:57 PM
hummm will take a part and take pics hopefully fix!


http://i297.photobucket.com/albums/mm216/kenika65/CIMG4401.jpg?t=1253210522

http://i297.photobucket.com/albums/mm216/kenika65/CIMG4403.jpg?t=1253210615


Now how to fix and test..!

Found this... From here... http://opel-scan.ru/files/DME_1.1_1.3.pdf

ATS
The ATS is mounted in the AFS inlet tract and measures the air temperature before it enters the inlet manifold. Because the
density of air varies in inverse proportion to the temperature, the ATS signal allows more accurate assessment of the volume of
air entering the engine. However, the ATS has only a minor correcting effect on ECU output.
The open circuit supply to the sensor is at a 5.0 volt reference level and the earth path is through the AFS earth return circuit.
The ATS operates on the NTC principle. A variable voltage signal is returned to the ECU based upon the air temperature. This
signal is approximately 2.0 to 3.0 volts at an ambient temperature of 20° C and reduces to about 1.5 volt as the temperature rises
to around 40° C.

kenika65
09-18-2009, 03:04 PM
Anyone have any knowledge on this?

Ramblin MAn
09-22-2009, 09:55 AM
This is probably not much help to you, but you are probably better off just replacing the AFM. You can test the ATS by finding the pins on the AFM that it connects to and then get a hair dryer and blow it at the sensor while reading the restance, but what do you do about it? It's probably faster and cheaper just to replace the whole AFM and be done with it.

kenika65
09-22-2009, 06:57 PM
True true true but im a tool so ya know i have to try :) and the code number is code 77 in the verus and 1224 for the stomp test.