roadrunner20
Well Known Member
I've check all the others threads on the topic with no solution.
Normal ops for 400hrs, fuel pressure reads ~16psi on my GRT EIS400 via a vdo fuel pressure sender.
A couple of weeks ago, on startup, my pressure was spiking ~50psi. Following the runup, it would settle back down to 16psi.
With the boost pump on would add +10 to the pressure.
This has been happening ever since but never in flight until this week.
I've cleaned my boost pump filter, snugged up fuel lines and intake.
Still have the issue.
I suspect it may be a bad sender & will get one next week.
Anyone else have any ideas that I might try this weekend in the event it's not the sender.
I hate to break down the engine-driven pump.
I figure I can at least wait for the sender as it's the least expensive and minimal maintenance.
Normal ops for 400hrs, fuel pressure reads ~16psi on my GRT EIS400 via a vdo fuel pressure sender.
A couple of weeks ago, on startup, my pressure was spiking ~50psi. Following the runup, it would settle back down to 16psi.
With the boost pump on would add +10 to the pressure.
This has been happening ever since but never in flight until this week.
I've cleaned my boost pump filter, snugged up fuel lines and intake.
Still have the issue.
I suspect it may be a bad sender & will get one next week.
Anyone else have any ideas that I might try this weekend in the event it's not the sender.
I hate to break down the engine-driven pump.
I figure I can at least wait for the sender as it's the least expensive and minimal maintenance.