Test DQ: Step 14

14) Checking FIPL Sensor Adjustment Perform KOEO Self-Test with throttle in WOT position. After the last code is displayed, remain in Self-Test mode. Place .515" Gauge Block (T83T-7B200-AH) between the fuel pump lever travel limit screw and the gauge boss. See Fig 1-42. Cycle the Overdrive Cancel Switch (OCS) once while observing the Self-Test output of the STAR tester for:

Constant tone, solid light or "STO LO" indicates the FIPL adjustment is within range. Cycle the OCS to exit this test.
Beeping tone, flashing light or erratic "STO LO" reading (1 or 4 per second) indicates FIPL adjustment is required.

NOTE: If no tone is heard, FIPL substrate may be internally worn. Check by moving sensor.

WARNING: DO NOT turn the fuel pump lever travel limit screw. This screw is pre-set and should not be tampered with.

If adjustment is necessary on an FIPL that shows no signs of wear, loosen FIPL attachment screws. Rotate sensor until a steady tone is heard, or a steady light or "STO LO" is displayed. Tighten FIPL attachment screws. Remove Gauge Block (T83T-7B200-AH). Repeat the QUICK TEST.

If adjustment is necessary on an FIPL with a bracket showing signs of wear, remove epoxy from FIPL bracket screw heads. Loosen screws attaching the bracket. Rotate the bracket to get FIPL within range. Retighten screws and apply epoxy to screw heads. Remove Gauge Block (T83T-7B200-AH). Repeat the QUICK TEST.

If codes are still present or a steady tone or light cannot be obtained, replace the FIPL sensor.

Fig 1: Test DQ - Top View of Fuel Injection Pump & FIPL Sensor

Fig 2: Test DQ - Installing Gauge Block on Fuel Injection Pump

Fig 3: Test DQ - Side View of Fuel Injection Pump & FIPL Sensor

NOTE: There is a break in the step numbering sequence at this point, skipping from step 14) to step 90). Break is due to previous chart references to these testing procedures. No test procedures have been omitted.