I marked mine so that I wouldn't have to worry about this, but like a dope I cleaned it and the marks came off as well.

What exactly am I looking for when mounting the throttle position sensor on my TPI setup?

Also...while I'm at it...I need to put the idle air control valve in as well. I know that you can adjust those manually, but isn't it true that I don't really need to as the computer will adjust it after I drive it around?

Thanks

 

BTW -- I know TPS adjustment is covered in the Haynes manual. However, the in the manual's method, it wants me to measure voltages in the leads from the harness while it is connected. This assumes that the everything is in place for me to turn the ignition on, but I'm still putting things back together and I'm not ready to put the battery in.

As I understand it, the TPS is essentially a pentiometer (correct me if I'm wrong); therefore, I should be able to measure resistance across leads, which should vary as the TPS position changes. So, what I'm looking for is a measure of *resistance*--not voltage--so that I can put this on without having to wire it up to my car. If anyone knows how much resistance I should be getting across the TPS leads in either idle or WOT, please let me know so that I can adjust mine properly.

Thanks again...

 

Since the voltage regulator in the ECM is what supplies the 5VDC to the TPS, and the regulators can vary slightly, you really should set the TPS by voltage. Make a note of it so you don't forget when the battery gets installed.

 

Use the blue wire and a ground when you're checking the voltage, but go ahead and set the idle air before you set the tps, as it will affect your reading and you want to get off to a good start. You can test to see if the tps is good by checking resistance as you move the throttle, but I'd stick to what vader says to install it correctly.