Hi, I've a problem with the fuel pressure under load as it's only rising up to aprox 55 Psi, I've noticed the pressure was low on idle (30 Psi) so I raised the pressure up to what it should be on idle and did I little test drive but the pressure does not come above 55 Psi.
The pump is a Bosch 044 and about 3 years old but sounds "crispy", could it be the pump or the regulator which is a Aeromotive A1000.
What's best to test and how before spending money on new parts?