4.26
ELECTRONIC FUEL INJECTION
10. Allow the throttle foot pedal to rest in the idle position. The
voltmeter should read .730 ± .010 volts.
11. If the voltage does not read within the specification,
proceed to the “TPS Adjustment” procedure. If the
voltage reading is within specification, no adjustment is
required.
TPS Adjustment
NOTE: This procedure should be performed after
you have checked the TPS reading. Refer to
“Checking TPS Reading” procedure before making
any adjustments.
1. Make sure the TPS Tester harness is still connected to the
TPS harness.
2. Loosen the mounting screw (B) holding the TPS to the
throttle body (see Figure 4-29).
3. Rotate the TPS until your voltmeter reads .730 ± .010 volts
(see Figure 4-28).
4. Retighten the mounting screw, and verify the voltage did
not change. If the voltage changed, repeat steps 2 - 4.
5. Reconnect the TPS harness to the vehicle chassis harness.
TPS Replacement
NOTE: The correct position of the TPS angle on the
throttle body is established and set at the factory. If
the TPS is replaced, repositioned or loosened it
must be recalibrated. Refer to the “TPS Adjustment”
procedure.
1. If the vehicle is completely assembled, remove the exhaust
pipe and exhaust silencer from the vehicle to gain access to
the throttle body and TPS.
2. Disconnect the TPS harness connection (A).
3. Remove the mounting screw (B) and replace the sensor.
NOTE: If replacing the TPS or throttle body, you
must perform the “TPS Adjustment” procedure.
4. Refer to “TPS Adjustment” for setting the TPS voltage.
TPS Output Reading
.730 ± .010 Vdc
TPS Output Reading
.730 ± .010 Vdc
Should Read
.730
Black
Red
Pink
Black
Probe
Red
Probe
.730 ± .010 Vdc
PU-47082 Tester
Figure 4-28
TPS
A
B
Figure 4-29
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