FUEL Fuel system4-19 69J3D1119. Measure the vacuum of cylinders #1, #3,and #5. Repeat step 12 if out of specifi-cation.20. Measure the vacuum of cylinders #2, #4,and #6. Repeat step 12 if out of specifi-cation.21. Check the average vacuum differencebetween the port and starboard banks.Adjust the port throttle stop screw 8 ifout of specification.22. Measure the throttle position sensor out-put voltage when the engine speed is atidle. Adjust the throttle position sensorposition if out of specification.23. Install the port link rod 2 and starboardlink rod 3.24. Tighten the bank synchronizing screw 1.NOTE:Tighten the screw without tilting the plate.Vacuum difference betweencylinders:20 mmHg (27 mbar, 0.79 inHg)Average vacuum difference betweenport and starboard banks:40 mmHg (53 mbar, 1.57 inHg)Throttle position sensor outputvoltage:Pink (P) – Black (B)700 ± 5 mV at idle speed(700 r/min)T R..Link rod nut:4 N·m (0.4 kgf·m, 2.9 ft·lb)T R..Bank synchronizing screw:4 N·m (0.4 kgf·m, 2.9 ft·lb)