Checking FIPL Sensor Operation
- Perform Key On Engine Off (KOEO) Self-Test. See KOEO SELF-TEST in appropriate SELF-DIAGNOSTICS - EEC-IV article in ENGINE PERFORMANCE. During KOEO self-test, hold throttle in wide open position until fault codes have been displayed.
- After last fault code has been displayed, press Overdrive Cancel Switch (OCS) to initiate FIPL sensor adjustment mode. In the adjustment mode, this will allow Star Tester to be used as an audible guide in checking and adjusting FIPL sensor. NOTE: Star tester will remain in adjustment mode for 10 minutes. Steps 3) and 4) must be done within this time frame. If time limit is exceeded, procedure must be repeated, starting at step 1).
- Remove throttle cable from throttle lever on right side of fuel injection pump. Insert.515" (13.08 mm) Gauge Block (T83T-7B200-AH) between gauge boss and maximum throttle travel screw. (Scheme 42) Hold throttle lever open against gauge block.
- A steady tone from Star Tester indicates proper FIPL sensor adjustment. If FIPL sensor setting is too low, Star tester will emit a slow beeping sound (one beep per second). If FIPL sensor setting is too high, Star tester will emit a fast beeping sound (4 beeps per second). Adjust FIPL sensor if necessary.
Scheme 42
