Porsche 928 Workshop Manual page 350

928
Electronic Fuel Injection
24
ADJUSTING IDLE SPEED AND CO -USA AND JAPAN
( 8 e g i n n i n g w i t h 1 9 8 3 M o d e I s - L-Jetronic)
Note:
Requirements:
Engine in perfect mechanical condition and ignition
timing adjusted correctly.
1. Fold up foot support in footwell on passenger's
side and disconnect oxygen sensor plug.
3. Connect exhaust probe US 4492 on exhaust
source line.
2. Take off cwer of exhaust source line in engine
compartment.
Note:
If there is suspicion of erratic engine running or
when troubleshooting, it is advantageous to use
test connection on the catalytic converter.
Printed in Germany VII, 1983
Adjusting Idle Speed and CO - USA and Japan,
24-6~
1983 Models