SECTION 03: FUEL SYSTEM
DOB 2490-2789 | X3-45 Commuter PA1605 Maintenance Manual (Section 03 revised May 2018)
13
see
"01 ENGINE"
in this manual), check the
throttle counts at idle and full throttle positions.
Proper pedal output should be 20/30 counts at
idle and 200/235 at full throttle. If adjustment is
necessary, remove the potentiometer retaining
screws and rotate the potentiometer clockwise
to increase counts or counterclockwise to
decrease. When correct output is confirmed,
tighten retaining screws.
6.2 POTENTIOMETER REPLACEMENT
1. Disconnect cable harness connector.
2. Loosen the two screws and remove
potentiometer. Retain for re-assembly.
3. Discard potentiometer (Figure 22).
CAUTION
Note the routing and clamping locations of the
cable before disassembly. Proper cable
routing and fastening is critical to the
operation of this system. Marking the foot
pedal assembly to record cable routing is
recommended.
2. Position new potentiometer. Press
potentiometer onto the potentiometer shaft,
matching cutouts in shaft to drive tangs of
potentiometer. Apply hand pressure until
potentiometer has bottomed out in housing.
Reinstall screws (Figure 22) and tighten just
enough to secure potentiometer lightly. Tighten
screws to 10 - 20 Lbf-in (1.13 - 2.26 Nm).
3. Reconnect electronic foot pedal assembly's
cable harness to the ECM connector. If
potentiometer calibration is necessary (see
"FUEL PEDAL ADJUSTMENT"
in this
section).
CAUTION
Make sure the cable harness is routed
correctly, and securely installed so that it does
not become pinched, stretched, or otherwise
damaged during vehicle operation.
FIGURE 22: ELECTRONIC FOOT PEDAL ASSEMBLY
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