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Can't get fuel flow at full throttle - lean engine
Continental fuel-injected engines except IO360 series.
1. If pump pressure (unmetered) is correct (29 pounds) but metered fuel
pressure is low (cockpit fuel gauge indication is low) and engine is lean,
then there's a loss of fuel pressure due to a fuel leak at the mixture
control valve which is dumping fuel back to the pump through the mixture
control valve. Lap the mixture control valve.
2. Beech B55 Baron. Unsteady fuel pressures. Lean misfire. Electric
boost pump required to maintain normal fuel flow. Check fuel check valves
in the wheel wells.
3. Fuel pressure to low.
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