Subaru MAP Sensor P0107 and P0108 | How to test and replace

Today we're going over how to test and replace a map sensor for a Subaru. A Subaru map sensor is quite expensive so it's a good idea to check everything before you go out and spend your hard-earned money.

P0107 - Manifold Absolute Pressure / Barometric Pressure Circuit low input. This simply means that the sensor is measuring a value less than 13.3 kPa (100 mmHg or 3.94 inHg).

P0108 - Manifold Absolute Pressure / Barometric Pressure Circuit high input. This simply means that the sensor is measuring a value more than 119.5 kPa (896.5 mmHg or 35.29inHg).

Symptoms of a bad or failing map sensor include:
Stalling
Rough idle
Engine does not return to idle
Poor acceleration
Engine hesitates
Engine surging
Spark knock
After burn in exhaust system

Chapters:
0:00 - Where is the map sensor
0:29 - Map sensor testing
2:07 - P0107 and P0108
3:00 - Testing with multimeter
6:07 - Old fashion way of testing

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►► Tools:
Digital multimeter: https://amzn.to/2KOdFZD
Mechanic's tool set: https://amzn.to/3lsWnCo
Probe kit: https://amzn.to/3bK6KON
Scan tool: https://amzn.to/3trD1Fn
Screwdriver set: https://amzn.to/3CHnWRL

Note:
Any attempt to repair automotive parts and/or systems carries risk of personal injury. Always adhere and follow safe practices when working on vehicles. Such as, safety glasses, jack stands, no loose clothing, etc. No guarantee or warranty is implied. Use the information in this video at your own risk. Carsntoys is a member of the Amazon Influencer Program.

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