4.30
ELECTRONIC FUEL INJECTION
Verify TPS Tester Reference Voltage
A 5 volt reference voltage from the TPS Tester harness is
required for the TPS test to be accurate. Refer to the instructions
provided with the TPS Tester (2201519-A) or follow the bullet
point steps below to check reference voltage.
Reference Voltage Test:
• Insert black voltmeter probe into the test port as shown.
• Insert red voltmeter probe into the test port as shown
and verify the voltage reads 4.99-5.01 Vdc. If the
reading is low, replace the 9 volt battery.
IMPORTANT: Always use a fresh 9 Volt battery.
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. Remove the seats, rear main service panel and the rear
cargo box. (See chapter 5)
2. Loosen the hose clamps retaining the throttle body.
3. Remove the throttle body from the intake track and plug the
intake boots with a clean shop tow.
4. Disconnect the vehicle harness from the TPS.
5. Remove the (2) Phillips-head mounting screws and replace
the TPS.
IMPORTANT: If replacing the TPS or throttle body,
you must set the TPS voltage to specification using
the TPS Tester or Digital Wrench™ Sensor Data
Display.
NOTE: To allow better access to the TPS harness
connection, remove the exhaust pipe and exhaust
silencer.
6. If Digital Wrench™ in unavailable, assemble the TPS
Tester according to the instructions. Refer to “TPS Tester
/ Regulator” for proper set-up and testing. Verify the 9 volt
tester battery is new.
7. Plug the TPS Tester harness into the new TPS.
TPS Reference Voltage
5 Vdc Input
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