Trouble code p0108

206,000 MILES • V8 • 2WD • AUTOMATIC
Avatar
TLF
  • MEMBER
  • 3 POSTS
Trouble code p0108 Manifold absolute pressure/barometric pressure circuit high. What is this and how do I fix it?
Jul 26, 2021 at 8:11 AM
Advertisement
Avatar
SQM
  • ✓Experienced Mechanic
  • 6,383 POSTS
Hello,

The Manifold Absolute Pressure (MAP) sensor is attached to the side of the engine throttle body.

The MAP sensor is used as an input to the Powertrain Control Module (PCM). It is a sensor helps the PCM control the air / fuel mixture ratio. Which helps the PCM determine the amount of fuel that the engine will need as well as spark advance.

Here is a helpful video of MAP sensor:

https://youtu.be/bHY7wu45AuU

I have attached the location of the MAP sensor for both the 4.7L V8 and 5.9L V8. Please refer to the pictures.
Also I have included step by step diagnostics for the code P0108. This will help you determine if you need a new MAP sensor or the issue is somewhere else.

Please let me know if you have any questions.

Thank you.
Jul 26, 2021 at 11:06 AM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle