An injector leaking down will cause a problem on a hot motor, but not likely on a cold one. A cold motor needs no residual pressure. It will start fine as the fuel pump provides pressure on cranking.

If your issue is pressure, that motor is the simplest to measure pressure. There is a service port at the front of the rail. If you suspect a injector problem put a hose on the service port and crank the motor. Collect a pint or so of fuel and observe it. Due to the returnless nature of the fuel system it has the ability to trap/accumulate debris in the rail. A good purge every once in a while often does some good.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician