are all TPS same value?

[doghouse]

THX,
ecm is 90-92 firebird. #1227730
so will attach scanner and see what it gives me for numbers,
was looking thru SLP papers, found # for tps there, gm # 17111606, slp # 23042

so will go from there,

[brian617]

Pretty easy to back probe connector with key on to check the output voltage value. Its also possible the pin assignments could be different. Being GM that's not usually the case but try comparing the two respective applications wiring diagrams.

[lionelhutz]

All the GM ones work pretty similar. I think they are all the same resistance. The closed and open throttle output voltages would vary a bit depending on the throttle body they are attached to.

I don't think the '730 PCM needs an adjustable TPS. It will learn the closed voltage.

[doghouse]

well, adjusting orig tps, makes a huge difference in drivability, previously, had hard time starting from a stop, car would nose over, or rev ,
setting tps to listed value, made the car 100X easier to drive,
also cruise previously was unstable/erratic, would not hold steady rpm,
now more normal and steady rpm,
I did order the listed tps sensor, it'll be here next week, so will see what difference it makes,
thx to all who offered advice ,
my next task is to check/set the timing, used to be a wire you disconnected (not sure of color)
anyone remember?

[NomakeWan]

On the 7730 ECM it is the "EST Bypass" connector you disconnect. If my sources are correct, the wire should be Tan/Black. This removes ECM timing advance so you can set the initial base timing advance.