Needing Help with Throttle Position Switch (TPS) on 1993

[bdw18_123]

Good call on the no-pierce methods, guys!

I didn't even think of that when I did mine and I usually do think of things like that.

[Z51JEFF]

Originally Posted by mike100

I keep a couple of paper clips and safety pins in the tool box because, if careful, you can slip them under the rubber GM weatherpack wire seal and touch the metal terminal. then use a clip lead to attach the pin to the meter leads...hands free at that point.

This is how I did it the first time,takes a little patients but it works.

[VetteMed]

Originally Posted by Dynomite

I am assuming this TPS adjustment applies to a 90', 91', and ???

Yes; applies to most GM EFI systems.

[Route 66]

Originally Posted by bdw18_123

Good call on the no-pierce methods, guys!

I didn't even think of that when I did mine and I usually do think of things like that.

Thanks again. are you sure about the .54 volts DC ?

[mike100]

Originally Posted by Route 66

Thanks again. are you sure about the .54 volts DC ?

pretty much for most of the 90's GM stuff. when I had my vacuum leaks, the first thing I checked was the TPS setup and it was factory set at .54 or .55 volts. I would set it to that level- should be right after that.

[Route 66]

Originally Posted by mike100

pretty much for most of the 90's GM stuff. when I had my vacuum leaks, the first thing I checked was the TPS setup and it was factory set at .54 or .55 volts. I would set it to that level- should be right after that.

I will do that.
Thank you...E

[Route 66]

I got the TPS set back where it should be an it no longer has a falt code for the TPS ! Thanks to all of you for your input.....E