Unfortunately, no. Though random, the issue occurs on over half of the starts. Luckily, it occurs mostly when first started or within a few minutes of starting. It will sputter then die, we restart it a few more times and finally you get a good connection, but not exactly reassuring when you get ready to pull into traffic.

Looking at my dealer records we have had the following replaced:

Ground stud
T4A43839 Module-Fuel Pump $0, under warranty
161072 ILSP (whatever that is)
LR082740 Pump - Fuel (in-tank fuel pump) $665, $400 labor
LR117476 Gasket - Fuel PU $17
YWB500220 Relay $0, under warranty

Also, I did the cable connection between the studs too.

At this point I am looking for water infiltration that may short a component. However, we do have the issue when wet or dry. I hope this helps somehow, but I would not get another one.

 

Thanks for responding. That’s what I was afraid of, keep replacing parts and never actually find the true cause

 

Exactly. I was trying to locate every ground in the vehicle to make sure they were solid, but there are many and I cannot find a usable diagram that shows where every ground is located.

 

Next I'm going to track the water drainage from the sunroof area and see where it leads.

 

Told the dealer I’ll just pick up the car and hold off on the fuel pump. It’s pretty ridiculous that there’s no actual fix for this. I still need to buy a scanner so I can check the code when it decides to throw one, and clear them

 

MY check engine light is on almost constantly. When the engine sputters the light comes on with an emissions related code , since the fuel system is freaking out. The light goes off after a day or two of decent running.

 

Have you been able to track down any other cause yet? Ours seems to be getting worse, if we drive it at highway speeds especially, it’s tough to get it to start again if we shut it off. At some point I guess we have to decide whether to drop the money and have the fuel pump replaced and see if that’s a part of the problem

 

Nope, just living with the unpredictability.

I think I will install a new Fuel Pressure/Temperature Sensor. Just over $100 and I should be able to get at it near the firewall on the fuel rail.

Just about all the other fuel system parts have been replaced.

I have checked in the back area where water might flow in from the sun roof but I didn't find any water issues.

 

Update.
Thanks go to @Canes173 for helping march through new parts to see what solves this issue. He now has a working vehicle, last I heard anyway. His fix (new fuel pump relay) did not work on mine though, still dying after starting, and dying when accelerating at low speeds. Seems like a only at low RPMs.
I thought I would do a little cleaning around the air intake piece. Cleaned both MAF sensors. I was going to look at the throttle body but determined after looking at what I faced I needed about 4 hours to do it thoroughly, and didn't have that time to spare. When looking around I noticed a hose that comes from either the engine or the supercharger back to the air intake was only butting against it intended connection. I tried to get the hose and cclip to connect but there was simply not enough length to get the connection to click. Thinking now maybe this is a vacuum leak. For a temporary fix/test I wrapped the connection tightly with black electrical tape to see if that would seal it to some degree. I have no idea what the hose is intended for if not simply a vacuum hose. I have included a picture showing the hose coming from under the supercharger. If anyone knows what this hose is I would greatly appreciate knowing it also.

 

The temporary tape job did not work. Obviously, that possible leak may still be a problem. Up next - smoke test.

Turns out the hose is a breather hose.