|
|
|
|
Thread Tools | Display Modes |
11-20-2017, 07:36 PM | #1 |
Scooby Newbie
Member#: 221916
Join Date: Aug 2009
Chapter/Region:
NWIC
Location: Grants Pass,Or.
Vehicle:2000 2.5 RS white |
What is this electrical component?
I have a 2000 Impreza 2.5rs that I am doing a EJ207 swap. I was setting up a bracket to install the wastegate solenoid when I discovered this component that I can not identify. It is pt# 22012AA150. I looked it up on Subaru parts. It is called a "AY vacuum sensor. I cannot find it on the wiring diagram. Does anybody know what this part is and what it does?
Thanks Mario
* Registered users of the site do not see these ads.
|
11-21-2017, 12:21 PM | #2 |
Scooby Newbie
Member#: 372859
Join Date: Nov 2013
Chapter/Region:
NESIC
Location: Burlington, VT
Vehicle:2006 WRX Wagon Ltd. Sedan Wide Body UGM |
That is the Manifold Absolute Pressure (MAP) sensor. Sometimes it is located on the throttle body, sometime it is remote mounted which seems to be your case.
https://en.wikipedia.org/wiki/MAP_sensor |
11-21-2017, 08:42 PM | #3 |
Scooby Newbie
Member#: 221916
Join Date: Aug 2009
Chapter/Region:
NWIC
Location: Grants Pass,Or.
Vehicle:2000 2.5 RS white |
Thanks, I guessed it had something to do with manifold pressure but I have never seen it mounted remotely and the description from Subaru has a lot to be desired. Again, thanks for your help. Mario
|
11-24-2017, 11:34 PM | #4 |
Scooby Newbie
Member#: 221916
Join Date: Aug 2009
Chapter/Region:
NWIC
Location: Grants Pass,Or.
Vehicle:2000 2.5 RS white |
atmospheric pressure sensor
Upon further research, I think this is a atmospheric pressure sensor. There is a thread explaining its operation in the transmission forum. Basically, it has an effect on the air fuel ratio based on the altitude where the vehicle is driven.
|
11-28-2017, 12:53 PM | #5 | ||
NASIOC Supporter
Member#: 30669
Join Date: Dec 2002
Chapter/Region:
Tri-State
Location: USA, North NJ, 07456
Vehicle:1998 Legacy 2.5GT Silver Sleeper BK, 5MT |
Quote:
Quote:
It relates intake tract pressure to the ECU based on altitude, weather and how much draw the engine is doing on the intake system. A bit different than a MAF which measures airflow past the sensor to determine what the ECU does in relation to fueling. |
||
Thread Tools | |
Display Modes | |
|
|