u/johnnysstashTV

Alright, I need some assistance. 🙄.

2018 2500 w/t. Picked up with a smoking issue and fuel issue. Supposedly had a turbo swapped from another L5P. And was T&D prior to my purchase and "is a 60hp tow tune".

I have chased down a low rail pressure issue for two weeks now. I'm getting heavy smoke on acceleration, vein position shows 73% at idle and doesn't fluctuate more than 10-15% when driving.

Sometimes rail pressure will stay with desired for a little bit but drops down substantially at random and stays low. Picture of my parts list so far. Had a highly recommended local diesel tech here in Murfreesboro TN come by and diag to which he said all pointed to MAP sensor but that changed nothing. He also did a vein relearn and crank position relearn he said. I'm not losing coolant, and CCV reroute will be here this week. Any help appreciated, I need to tow with this truck next weekend.

Any L5P guru's out there that I can chat with? Looking for some assistance. I recently picked up a "T&D" L5P for cheap due to some issues. I am still getting low rail pressure compared to desired. Already did new driver rail with sensor, passenger sensor and pigtail, cleaned out the fuel tank and replaced the lift pump with a new OEM pump, Fresh fuel filter and FPCM. Sometimes it stays right at desired but will drop and then consistently stays lower than desired. It did have water in the fuel hence the reason I dropped the tank and cleaned it. The original lift pump was rusty and had so much crud in the filter and around the bottom of the whole assembly. Currently using an edge CTS2E to watch gauges.