Hey guys I have a 2004 LB7 Duramax. That recently through the P0380 code. After doing some research online I saw that it could possibly be bad glow plugs or a bad glow plug controller. So for safe measures I went ahead and replaced all the glow plugs with brand new Bosch glow plugs and I also replaced the glow plug controller with a brand new unit but the truck still continues to throw the P0380 code. It also shows P0380 PD on the code reader which from what I have read is a continuing code. Any anyone shed some light as to what else could he causing this code?