Porsche 912 E - Fuel Pressure and Component Checks

24
Fuel System, Fuel Injection
CHECKING FUEL PRESSURE
1. Loosen injector supply line plug.
2. Connect the pressure gauge of P 378 with
an appropriate adapter or a similar pressure
gauge (rated 1, 0) to the injector supply
line.
3. Disconnect vacuum hose between air
distributor and pressure regulator.
24 - 6
Checking Fuel Pressure
4. Detach hose between throttle housing and
intake air sensor at intake air sensor.
5. Tum on ignition.
6. Open stator flap by hand a little until the
pump
contact makes and then read the fuel
pressure at
the same time.
+ +
Specifications: 2.5- 0.2 atm/35 - 1.4 psi
with vacuum hose disconnected.
Replace pressure regulator
if specifications are
not met.
7. Replace injector supply line plug.
Printed In r.Prrn~nu