ETA wont rev past 2k rpm

[blacksport325]

I have a low mileage 325e that sat for a few years. It wasn't running until I flushed out the gas, replaced the fuel filter. Also changed cap and rotor, distributor and plugs. Now it won't rev past 2k rpm. I replaced the o2 sensor and reference sensor on the bell housing and saw no change. The pin on the flywheel appears to be in tact. The weird thing is when I unplug the reference sensor the car does not die or run any different. When I unplug the speed sensor it dies. The car also has a tough time starting...I need to pump the gas pedal for it to start. Any thoughts?

[jeffnhiscars]

If it's sat my guess is gummed injectors. They may need to be refreshed but I'd try some fuel additive and see if that helps.