tps evaluating for ii issues

[dave]

Here are the results of my TPS test:
Test #1: Sensor fully connected, ignition switch on, kill switch on, measured voltage between sensor wires and battery negative terminal. (It was impossible to find a reliable ground anywhere on the bike, except at the battery).
1. Red/Yellow: Throttle fully closed = 4.8 VDC. Throttle fully open = no change.
2. Red/Black; Throttle fully closed = .5 VDC. Throttle fully open = 4.4 VDC.
3. Green/Black: Throttle fully closed = 0.0 VDC. Throttle open = 0.0 VDC.

Test #2: Sensor disconnected, ignition switch on, kill switch on, measured voltage between sensor wires and battery negative terminal. Throttle position not applicable with sensor disconnected.
1. Red/Yellow = 4.8 VDC.
2. Red/Black = 0.0 VDC.
3. Green/Black= 0.0 VDC.

I was not able to measure the resistance of the TPS while it is mounted on the bike because the pin connectors are nearly impossible to see, and nearly impossible to make contact with. Ideally, a plug-in connector with loose wires would be the hot set-up, but maybe if I use a mirror and a second pair of hands I may be able to do it – just not tonight.

All connections between the TPS and the harness appeared good, with no looseness or corrosion. I unplugged and reconnected the TPS connector at least a dozen times during my tests, so if there was a loose connection that was not obvious it is most-likely not loose anymore.