Just Installed Pfc, Fuel Pump Primes For Very Short Period-normal?

[turbomad]

As mentioned after installing the PFC the fuel pump only primes for a brief moment when you turn the key to ON and it sounds more quiet, previously it primed for a much longer period and it was louder too, is this normal for a PFC? The fuel pump is a Bosch 944 and was always in the car.

[paulr33]

tap the throttle, it should sound loud & normal

[turbomad]

hmm sarcasm is the lowest form of wit. so nobody has noticed the difference after the PFC install?

[paulr33]

i was being serious, it should be a dual stage voltage, i mean it makes sense

why run the pump at full voltage when it only needs priming and low pressure