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AMBIENT (INTAKE) AIR TEMPERATURE

Tiny
LULALAKE
  • MEMBER
  • 2002 TOYOTA ECHO
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 167,000 MILES
Hi folks,

Where exactly is the intake air temp sensor located?

Thanks much
Wednesday, October 7th, 2009 AT 6:44 PM

7 Replies

Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
Intake Air Temperature (IAT) sensor is a thermistor built into MAF meter and is used to monitor temperature of air flowing through MAF meter.
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Thursday, October 8th, 2009 AT 1:30 PM
Tiny
LULALAKE
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Thanks but,
where is the MAF meter then?
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Thursday, October 8th, 2009 AT 7:20 PM
Tiny
SERVICE WRITER
  • MECHANIC
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Right inline with the fresh air intake. It is bolted to the upper cap on air cleaner assy.


https://www.2carpros.com/forum/automotive_pictures/30961_echo_1.jpg

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Thursday, October 8th, 2009 AT 7:53 PM
Tiny
LULALAKE
  • MEMBER
  • 4 POSTS
Thanks much folks,
Almost there. There are two sensors there, a large one (A) on top on the ait intake, then a small one (B) "inline" with the intake going to some kind of air hose.

(See the pic)

Which one is it please?


https://www.2carpros.com/forum/automotive_pictures/418813_Sensors_on_echo_1.jpg



Thanks
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Thursday, October 8th, 2009 AT 8:16 PM
Tiny
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https://www.2carpros.com/forum/automotive_pictures/30961_echmaf_1.jpg

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Thursday, October 8th, 2009 AT 8:45 PM
Tiny
LULALAKE
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  • 4 POSTS
Thanks tons folks

LL
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Thursday, October 8th, 2009 AT 9:30 PM
Tiny
ZIZ212
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  • 2 POSTS
What does each code means?I'm trying to install a performance chip that requires only the sensor signal and ground
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Saturday, November 7th, 2009 AT 6:55 PM

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