OK, I do have my air gap ordered and it should be here the first of the week, but until then one or two questions. # 8 is getting to much fuel, but can this be do to the plenume being bad or do you think it would be a bad injecter going bad? I want be able to install the air gap until the weekend after next and boy am I going through the fuel right now

 

The "plenume" is blown most likely, cat is clogged or part of the way there, and depending how long it's been going on. There is a strong possibility you have a cracked head. Get some techron+ and run it through the fuel system and also seafoam the intake before you do the work. And also have the cat checked, and don't forget to buy new o2 sensor's. NTK from rock auto.


All the info you need about the "plenume" is right here. Read it. https://dodgeforum.com/forum/2nd-gen...um-thread.html