Review on Dorman 615 177 Intake Manifold by Tony Jockheck

I had some issues and DTCs P0171 and P0174. After some research, I found that the isolator bolts were the culprit, as well as the front valve cover on some models. I found this product on Amazon and decided to do the repair myself. I'm a craft lover and I don't really want to pay anyone for anything. It was pretty easy and self-explanatory. Just make sure you know the specific torque and tightening sequence when doing this. Everything came together pretty well. The only issue I had was the PCV valve included in the kit was leaking where it connected to the upper intake plenum. I ended up taking the old one off and putting it back on. I think the PCV valve itself in the Dorman kit lost a lot of oil. Upon completion the P0171 code was gone but I still have the P0174 code. I'm not sure what it is, but I'm sure it wasn't from the kit. The set itself works very well.