We recently installed a new EI engine monitor system and are experiencing issues with the fuel pressure indication. This problem is not unique to us, as many others have reported similar issues. The aircraft has a newly overhauled engine with 50 hours on the tachometer, including a newly overhauled carburetor. According to the POH, the normal operating range for fuel pressure is 0.5 to 6 psi. The pressure stabilizes when the electric boost pump is turned on, we have good fuel flow, and the engine runs strong.
To address the issue, we have taken the following steps:
The remaining actions we have not performed are rebuilding the primer and replacing the engine-driven pump, which has 50 hours on it. Some forum discussions suggest it could be a float issue in the carburetor. Does anyone have a definitive fix for this issue?
To address the issue, we have taken the following steps:
- Replaced the electric fuel pump.
- Bled the fuel system of air.
- Replaced the transducer.
- Replaced the seal at the gascolator.
The remaining actions we have not performed are rebuilding the primer and replacing the engine-driven pump, which has 50 hours on it. Some forum discussions suggest it could be a float issue in the carburetor. Does anyone have a definitive fix for this issue?
