porsche Workshop Repair Guides

Porsche Workshop Service and Repair Manuals

Connecting and Bleeding Pressure Gauge|Page 323 > < Connecting and Bleeding Pressure Gauge|Page 321
Page 1
background image

Fuel Pressure: Testing and Inspection
Checking Control Pressure "Warm-Full Throttle Enrichment"

CHECKING CONTROL PRESSURE "WARM-FULL THROTTLE ENRICHMENT" 

1.  Check control pressure "warm" (fuel pumps must be running).

2.  Disconnect pressure hose for warm-up regulator at throttle housing.

3.  Connect tester VW 1274 with (locally made) adapter on disconnected hose (to warm-up regulator).

4.  Pump warm-up regulator to approx. 0.5 bar (7 psi) pressure.

Note: 

A pressure above 0.8 bar (11 psi) could damage the diaphragm in the warm-up regulator.
Control pressure will now drop and must reach the specified value with warm-up regulator out of action.   See: Specifications   If necessary.
replace regulator.

Connecting and Bleeding Pressure Gauge|Page 323 > < Connecting and Bleeding Pressure Gauge|Page 321