Porsche 928 Workshop Manual page 433

928
Fuel Mixture
25
TESTING AND ADJUSTING SPECIFICATIONS FOR K-JETRONIC
(1981/1982 Models)
Engine M 28.09 and M 28.10
Test Point Specification
Electric fuel pump
Delivery rate with
1 fuel pump
Control pressure "cold"
(= ambient temp.)
l
Control pressure "warm"
Test with pressure
(without vacuum)
connect YaC""m pump
for test on intake pressure
connection of warm-up
control.
Test pressure 460 600 mb;
(350.450 mmHg)
at least 1120 cc/30 sec.
Diagram for warm-up control
Part No. 928.606.109.05
Bosch No. 0438.140.087
Test vacwm 450 - 550 mbar
1340.420 mmHg)
2,8 3.2 bar
3.4.. 3.8 bar
Remarks
Printed in Germany
"1, ,982
Testing and Adjusting Specifications
25.6e