I have the same problem I hear other people have with the ZN1300...idle hard to set, bad gas mileage, etc. Seems one needs a Throttle Sensor Position Checker 57001-1003, and of course my local dealer doesn't have one, haven't seen anyone with one..
Does anyone have one of these? Do you know of anyone who does? Maybe a dealer willing to lend another dealer one, if not a home mechanic? Anyone with one to rent? Anyone who knows what is in it...looks like a simple wiper voltage reader with two LEDs, possible easy to duplicate.
I'm really tired of trying to set an idle and looking like a fool at stoplights. Any suggestions?

