I have an 88vert n/a, mt. I have followed the directions using a multi meter to adjust the tps for 1 K ohm at the idle position. I have rechecked it a couple times and get significantly different readings. The tps readings appear to change properly. Is this normal?

 

It depends on engine temp. If it's not fully warmed up, idle speed and TPS position/resistance will vary. I also find it hard to get exact resistance values, so whenever I've set the TPS I've done it by voltage. 1.0 vdc on the top wire of the TPS plug is the corresponding value to 1k ohms.