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Thank you for the VIN! Just out of curiosity, have you checked the fuel pressure regulator?
Just remove the vacuum hose or line going to the regulator and see if there is fuel in it. If so, the diaphram has ruptured inside and the regulator will need to be replaced.
YES and YES
Some other possible causes would be a bad engine coolant temp sensor, a no spark issue caused by a bad crank senor or even a bad mass air flow sensor (which is very common).
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Right in front on the fuel rail.
The round looking like thing where two fuel lines go into.
According to the manufacture, the compression should read anywhere from 145 psi to 189 psi
Your engine compression sounds very low. If this were the case, it would misfire or throw misfire codes all of the time. Thats not what is happening based on what your telling me. Are you sure your compression gauge is working correctly?
The low compression is a big issue. This needs to be addressed. As far as the noise goes, without hearing it myself it is hard for me to say what is causing it. If the engine is misfiring due to low compression, that might just be the noise you are hearing. It might be the pistons ratteling around or maybe even pinging. IF tnat is not it, then I would suspect it is between the engine and transmission as well. Like you said, possibly flywheel..
A cylinder leak down test should be done using a cylinder leak down tester.
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