12-14-2017, 10:34 AM
Max: Good observations and conclusions in your post 616.
When the TPS is suspect, it can be checked on the bike, key on, run/stop on, probing for a steady increase in voltage from throttle closed to throttle wide open.
It can also be checked for resistance, when disconnected.
See FSM page 5-23.
However, I am still inclined to conclude that idle instability has more than one cause, so that the IACV and a vacuum leak should be checked, especially when there is no DTC.
Thus, we have leave hope for future issues, in that a new throttle body assembly may not be the only possible solution.
For TPS failure, when cleaning is not a solution, how do we lobby Honda to provide a TPS, separate from the throttle body assembly?
The TPS on my 2014 standard is Keihin JT6H 40226.
When the TPS is suspect, it can be checked on the bike, key on, run/stop on, probing for a steady increase in voltage from throttle closed to throttle wide open.
It can also be checked for resistance, when disconnected.
See FSM page 5-23.
However, I am still inclined to conclude that idle instability has more than one cause, so that the IACV and a vacuum leak should be checked, especially when there is no DTC.
Thus, we have leave hope for future issues, in that a new throttle body assembly may not be the only possible solution.
For TPS failure, when cleaning is not a solution, how do we lobby Honda to provide a TPS, separate from the throttle body assembly?
The TPS on my 2014 standard is Keihin JT6H 40226.