Nemosuave22
Junior Member
2009 ram 1500 5.7, 5 speed. I did a 6.4 new proformance springs MDS delete that includes the non MDS lifters and hellcat oil pump with a tune. Problem I’m having is at idle my map reads around 60 kpa. Typically you can start theses swaps on a stock tune and it will run fine till you can get a tune. In my case I have the tune she starts up and chops fine although I need to adjust the fuel ratio. So the problem I’m having is that high load at idle I figured it was a vacuum leak but as far as I diagnosed I can’t find one. My timing is on point I know of that and I put in a new map sensor cause maybe I’d get lucky but no luck still dumping a lot of fuel at idle. What can cause this to happen. Has anyone had experience with this problem please help !!