Yes, and often overlooked in the diagnosis process. Many start with the pressure regulator, but AFAIK it doesn't have any internal elastomeric parts that can fail from age or cycles. The accumulator does, and my failure analysis clearly showed the cracks in the diaphragm that caused it to not hold pressure.

Duke

I certainly don’t mean to beat a dead horse but I just want some clarity:

You installed the stock coil and AFTER that you replaced the cap/ rotor?

If not, there’s still a chance that you burned your rotor. I think it’s worth opening up and cleaning/ inspecting to see if that makes any meaningful difference.

Did you try warming the car up until it stalls and Try and restart while spraying gas in the intake?

__________________
Eugene

10 E63 AMG
93 300te 4matic
07 BMW X3
14 Ford F-150 Fx2