IO-360, A1A: I need some help troubleshooting my fuel pressure.  My IA is busy with other stuff and not interested in chasing this.  I don’t mind getting my hands dirty, but I only know enough to get myself in trouble… Fuel flow fluctuates pretty much all the time but more noticeably in full power than in idle.  In idle it’s not really that big a deal, say 28-30psi.  In full power, it bounces 22-30 randomly but pretty constant.  I have a jpi-930.  Jpi says it’s probably not the sender