Hi folks,
New to this so bare with me. Looking for some
help. Just had my 07 LMM go into limp mode with a P0299 code. Truck is bone stock other than 6" lift and 35" tires and only 68k miles. I know it is a turbo underboost code. Drove about 50 miles in limp mode and turned engine off for approx 15 min. Started back up and still had engine light but ran normal and still is after 2 days. Any ideas would be appreciated. Also I went ahead and changed air filter just cause and i have cleared the code and havent seen it come back yet.