Where is the Throttle Position Sensor Located and How to Replace it on a Subaru Legacy?

The Throttle Position sensor can be found on the throttle body. However, this process does not apply to electrically controlled throttle bodies used on ULEV models, non-turbocharged 2005 and later models and all turbocharged ones. First of all, remove the cable from the battery's negative post. After that disconnect the TP sensor electrical connector. To separate TP sensor from throttle body press release tab and detach the electrical connector, remove sensor mounting screws, and take out the sensor from the throttle body. Next, take off TP sensor mounting screws including removing TP sensor. Meanwhile installing a TP sensor ensure that tang on movable part of TP Sensor is located in correct side of pin on throttle plate shaft. Install them loosely before plugging in its electrical connector then backprobing signal return and ground wires at the connector for this particular sensor. ON when you turn over the engine slightly rotates TP Sensor until voltmeter reads between 0.45-0.55 V with closed position of throttle plate should be noted during installation of this component. When indicated voltage falls within specified range then tighten up all screws holding down your tps securely but do not overtighten them. On some models, wire colors may be different however they're not even close to what you are looking for if you back-probe between one of these wires with any other ones; only by back-probing two correct wires you will obtain reading within or very near to desired values as mentioned earlier.

Genuine Subaru Legacy Throttle Position Sensor

TPS Switch

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

8 Throttle Position Sensors found

View related parts
Subaru Legacy Throttle Position Sensor
Part Number: 22633AA210
$100.74 MSRP: $146.00
You Save: $45.26 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Throttle
- Replaces: 22633AA140
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2004-2005 Subaru Legacy | 2.5i, 2.5i Limited, Base, Cold Weather, GT, L, L-S, Limited, SUS Limited | 2.5L H4
- 1999-2001 Subaru Legacy | Base, Brighton, Cold Weather, GT, L, Limited, Post | 2.2L H4 Series, 2.5L H4
View related parts
Subaru Legacy Throttle Sensor Assembly
Part Number: 22633AA140
$100.74 MSRP: $146.00
You Save: $45.26 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Throttle
- Replaced by: 22633AA210
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1999-2000 Subaru Legacy | Base, Brighton, Cold Weather, GT, L, Limited, Post | 2.2L H4 Series, 2.5L H4
View related parts
Subaru Legacy Sensor Assembly-Throttle
Part Number: 22633KA110
$124.25 MSRP: $180.07
You Save: $55.82 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: 22633AA240
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2001-2004 Subaru Legacy | Flat6, Flat6 L.L.Bean, Flat6-S, SUS Flat6 | 3.0L H6
View related parts
Subaru Legacy Sensor Set-Throttle
Part Number: 22632KA000
$194.91 MSRP: $284.95
You Save: $90.04 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaced by: 22632AA030
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2001-2004 Subaru Legacy | Flat6, Flat6 L.L.Bean, Flat6-S, SUS Flat6 | 3.0L H6
View related parts
Subaru Legacy Throttle Sensor
Part Number: 22633AA15B
Product Specifications
- Other Name: Sensor Assembly-Throttle
- Replaced by: 22633AA151
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1999-2004 Subaru Legacy | Baja, Baja-S, Base, Brighton, Cold Weather, GT, L, Limited, L-S, Post, SUS Limited | 2.2L H4 Series, 2.5L H4
View related parts
Subaru Legacy Throttle Sensor Assembly
Part Number: 22633AA111
Product Specifications
- Other Name: Sensor Assembly-Throttle; Throttle Position Sensor
- Replaces: 22633AA110
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1995-1999 Subaru Legacy | Base, Brighton, GT, L, LS, LS-I, Out Back, Post, SUS | 2.2L H4, 2.2L H4 (New EVAPO), 2.5L H4
View related parts
Subaru Legacy Throttle Sensor Assembly
Part Number: 22633AA110
Product Specifications
- Other Name: Sensor Assembly-Throttle
- Replaced by: 22633AA111
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1995-1998 Subaru Legacy | Base, Brighton, GT, L, LS, LS-I, Out Back, Post, SUS | 2.2L H4 , 2.2L H4 (New EVAPO), 2.5L H4
View related parts
Subaru Legacy Throttle Sensor Assembly
Part Number: 22633AA060
Product Specifications
- Other Name: Sensor Assembly-Throttle; Throttle Position Sensor
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1990-1994 Subaru Legacy | Base, L, LS, LS-D, Turbo

Subaru Legacy Throttle Position Sensor

The Throttle Position Sensor in the Subaru Legacy detects the position of the throttle plate and sends that information to the engine computer. This Throttle Position Sensor mounted on the throttle butterfly spindle sends a continuous voltage signal to the control unit. The control unit compares this with other data many times each second to allow the Subaru to accelerate, cruise, or slow smoothly. A closed-throttle version may also check whether the plate is fully shut. Previous contact designs employed a potentiometric strip in conjunction with a sliding brush. A contemporary non-contact Throttle Position Sensor, on the other hand, utilizes Hall effect, inductive, or magnetoresistive technology to detect variations in the magnetic field generated by a two-pole rare-earth magnet fixed to the spindle. This modification essentially minimizes wear and enhances the stability of the resultant signal. When the device fails, it can reduce fuel efficiency and limit performance. Timely replacement restores proper operation. An unresponsive Throttle Position Sensor can send a bad signal without warning. The Throttle Position Sensor in every Subaru Legacy must be working correctly. It is a key component in the Subaru fuel management system applied by the Legacy line.

Our website stands as the go-to online destination for OEM Subaru Legacy Throttle Position Sensor. With complete lines of genuine Subaru Legacy Throttle Position Sensor available at unbeatable market prices, we ensure top quality, reliability, and durability. Each part comes backed by the manufacturer's warranty, reinforcing your trust in our offerings.

Subaru Legacy Throttle Position Sensor Parts Questions & Experts Answers

Throttle Position Sensor
22633AA210
Q:
Where is the Throttle Position Sensor Located and How to Replace it on a Subaru Legacy?
Posted by Joseph P.
A:
The Throttle Position sensor can be found on the throttle body. However, this process does not apply to electrically controlled throttle bodies used on ULEV models, non-turbocharged 2005 and later models and all turbocharged ones. First of all, remove the cable from the battery's negative post. After that disconnect the TP sensor electrical connector. To separate TP sensor from throttle body press release tab and detach the electrical connector, remove sensor mounting screws, and take out the sensor from the throttle body. Next, take off TP sensor mounting screws including removing TP sensor. Meanwhile installing a TP sensor ensure that tang on movable part of TP Sensor is located in correct side of pin on throttle plate shaft. Install them loosely before plugging in its electrical connector then backprobing signal return and ground wires at the connector for this particular sensor. ON when you turn over the engine slightly rotates TP Sensor until voltmeter reads between 0.45-0.55 V with closed position of throttle plate should be noted during installation of this component. When indicated voltage falls within specified range then tighten up all screws holding down your tps securely but do not overtighten them. On some models, wire colors may be different however they're not even close to what you are looking for if you back-probe between one of these wires with any other ones; only by back-probing two correct wires you will obtain reading within or very near to desired values as mentioned earlier.
Answered by Subaru Parts Specialist Edgar / Oct 24, 2024

Related Subaru Legacy Parts

Browse by Year

2005 Throttle Position Sensor 2004 Throttle Position Sensor 2003 Throttle Position Sensor 2002 Throttle Position Sensor 2001 Throttle Position Sensor 2000 Throttle Position Sensor 1999 Throttle Position Sensor 1998 Throttle Position Sensor 1997 Throttle Position Sensor 1996 Throttle Position Sensor 1995 Throttle Position Sensor 1994 Throttle Position Sensor 1993 Throttle Position Sensor 1992 Throttle Position Sensor 1991 Throttle Position Sensor 1990 Throttle Position Sensor