About a month ago I installed new injectors from LC engineering into my 22rte. Shortly after I started having intermittant cold start problems... If it sat for 8ish hours it would fire up fine but 12hrs I would have to crank and crank...

This got more and more consistent over about ten days untill it always took a bunch of cranking to get it started if the engine was cold.

At first I thought it was my cold start system, so I verified that it was working properly. Then I discovered that after sitting for 12 hours it had no fuel pressure at the fuel rail(I checked it at the CSI)

So I replaced the fuel pressure regulator as it the last remaining fuel component that I haven't replaced since I got the truck. Problem still persists.

This weekend it sat for two days. When I cracked the fitting on the CSI it was bone dry!

Super frustrating! How do I prove that the brand new(not remanufactured/cleaned) injectors are leaking while keeping in mind that this is my daily driver!!??!


I replaced the fuel pump about 6 months ago with a brand new Denso. The CSI isn't leaking I had it out and connected with the fuel pump running.


There is no external leaks. I have checked extensively

 

Start with the basics; check your fuel pressure. Even though the pump is only 6 months old it could have started to fail.
The new injectors could be leaking ( one or all )... Easiest way to check is to pull the injectors and do a pattern test into a glass jar. Unfortunately the hard part is plumbing the injector to do this.

Have you called LC for any ideas as to why you're losing fuel pressure ?