I have an '89 Firebird with a 305 TBI. I did a Vortec head swap and used an Edelbrock performer intake with a Trans Dapt adapter plate.
I had a vacuum leak on the passenger side of the throttle body, so I smoothed the bottom of the throttle body with a bastard file to remove any high spots and replaced the gaskets, and I still had a leak.
I have a throttle body for a '92 Camaro that I can use, and it is slightly different; it has more material around the throttle plate on the passenger side, which should eliminate the leak, but the throttle position sensor is different.
I can easily splice the proper connector onto my wiring harness, but I am afraid that the sensors read differently.
I tested both of them with a Fluke DVOM, and they are pretty similar; the Camaro sensor has about 1 Kilo-ohm resistance higher than my firebird sensor.
Will this work?

 

It should work just fine.

Overall resistance of the TPS is not important (within reasonable range), but the voltage drop that is developed across it is. For example, one TPS has 5 kOhm between A & C. Ports A & C are tied between +5 volt reference supply and ground. The center wiper terminal (aka port B) will vary between 0.3 and 4.8 volts (min resistance to ground and max resistance to ground from port B). Now if A to C resistance is increased to 10 kOhm similar voltage will appear on port B as TPS is moved through the range. ECM A/D reads voltage change so it cares little for resistance values used in TPS.

//RF

 

Thank you, I will let you know about the results soon!

 

It'll work fine, I've swapped them around before without any problems, and IIRC the round connector TPS is the one you want, it's about $20 where as the flat connector is about $70