Originally Posted by Ian Burnside
Originally Posted by Jason Drew
Originally Posted by Bryan Lawrence
Is fuel lab replacing the diaphragm for you?


Nope, this is the second time I replaced it. I'll just add it to the yearly maintenance from now on to put in a new one, $20 is worth it for peace of mind.


Forgive my ignorance, but how does a failed diaphragm cause your head gasket to fail?


Massive drop in fuel pressure=lean condition/higher combustion chamber pressures.

1997 Eclipse GST - AWD swapped - TPC - GT Spec powered
2023 - 9.63 - 145mph