P0401 or P0299 Codes Check Engine Light on and Trouble Codes Explained & How To Fix it
Exhaust and Boost Leaks: A simple guide to finding the source.
What is a boost leak or an exhaust leak? Have a check engine light on and trouble codes such as P0401 or P0299? Simply put, a boost leak is a loss of air from an engine’s intake system and an exhaust leak is a loss of air from the exhaust system.
The full article on how to fix it can be found here:
https://bulletproofdiesel.com/blogs/d...
BulletProofDiesel.com
DARN-NEAR BULLET PROOF℠