Checking TPS voltage with a voltimeter?
Thread Starter
Drifting
Joined: Aug 2006
Posts: 1,326
Likes: 18
From: Los Angeles California
Checking TPS voltage with a voltimeter?
I would like to check my TPS voltage but when the TPS connector is plugged in, none of the sensor's contacts are exposed for me to probe. What is the normal way to check TPS voltage with a voltimeter?
Last edited by LouisvilleLT4; Aug 14, 2007 at 12:45 PM.
Race Director
Joined: Jun 2004
Posts: 13,966
Likes: 710
From: WI
I stick pins in the back of the connector then attach 'gater clips.
Race Director
Joined: Jun 2004
Posts: 13,966
Likes: 710
From: WI
They are very cheap, just wires with teeth on the end that spring closed. Even Walmart has them. You could wrap or solder a wire onto the pin if you don't want to go to the store.
Thread Starter
Drifting
Joined: Aug 2006
Posts: 1,326
Likes: 18
From: Los Angeles California
It's pretty tight inside that TPS sensor, do you think there's enough room to stuff these into it without them shorting each other out?
Race Director
Joined: Jun 2004
Posts: 13,966
Likes: 710
From: WI
I mean wrap the wire and tape it around the stick pin and put that into the back of the connector, or solder a wire onto the pin and stick that into the back of the connector. I have a few sets of 'gator clips, they come in handy. But if I didn't want to go to the store, I would just make a tester.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Team Owner
Joined: Jan 2003
Posts: 20,333
Likes: 263
From: Summerland B.C. Canada
I use a couple of 1 1/2" brad nails(flat finishing nail for air nailer). Lay it on the wire, then slide it under the rubber insulator, till it reaches the metal part of connector. Once both are in, I put one probe on each and measure the voltage.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Cool, I will have to find out more about these "alligator clips." Where do I get them?
I prefer to use the jumper wires that can be bought at Radio Shack as they have insulators over the clips on either end of the wires. You can get a variety pack for a copla bucks.
Le Mans Master
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas
One million and One uses.
Advanced
Joined: Jan 2001
Posts: 65
Likes: 0
From: eau claire, wi. usa
You can make a test gig yourself. Look at the one listed in the Eckler's catalog, then go to a junk yard and remove the TPS with the plug attacked. I cut the TPS off right after the flat portion and soldered on post and the wires from the plug. It is real handy and you can be assured of a good meter connection for a reading that isn't jumping around because of loose connections.
Thread Starter
Drifting
Joined: Aug 2006
Posts: 1,326
Likes: 18
From: Los Angeles California
Corvette Enthusiast
Joined: Oct 2003
Posts: 524
Likes: 140
From: La Quinta CA
Some interesting information for what it's worth. I checked my TPS voltage with a volt meter about two weeks ago and set it to .526 volts. Then I connected my WINALDL and checked to see what the ECM indicated the voltage was and it said the voltage was .490 volts. I figured this was probably from connector fatigue. I also figured since the ECM thought the voltage was low, then it would be best if I set it to where the ECM saw .53 volts. I adjusted the TPS again watching the voltage through the WINALDL software and once it was at .53 volts I locked it down.
