Unless the regulator fails and the pump can pump upto 90-100psi, nothing really to worry about. But check whatever injectors you have max pressure spec. Some bosch top out at 75psi
That's why I said not to waste time with a check valve or that stupid timer someone was selling and/or showing...
@maverickagm no effect. the check valve can be 30 inches or 30 feet from the regulator.
Adding an inline regulator is not a good idea unless it has a fuel return line port. The back pressure on the pump will kill the pump.
But it would be the particles getting stuck in the check valve that would make it not close and leak back if the spring still has the same load rating.
I would be interested in back flushing it and also disassembling one.
FUEL PRESSURE REGULATOR
A fuel pressure regulator is used on all gas powered engines. It is located on the top of the fuel pump module. A separate frame mounted fuel filter is used.
Fue l Pressur e Regulato r Operation : The pressure regulator is a mechanical device that is calibrated to...
I really doubt it is the coil as cylinder 7 fires the same time as 4 from the same driver and there are only 3 individual coils in one coil pack and 2 individual coils in the other pack.
It is vacuum controlled for the vent flapper. The line goes through the firewall. Search the forum here lots of information about it.
Your fan you need to check voltage inputs to it.
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