Checking TPS voltage with a voltimeter?
Thread Starter
Drifting
Joined: Aug 2006
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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
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From: WI
I stick pins in the back of the connector then attach 'gater clips.
Race Director
Joined: Jun 2004
Posts: 13,949
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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
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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
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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.
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Team Owner
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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
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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.
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From: One day you're a Comet...the next day you're dust... Arkansas
One million and One uses.
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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
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From: Los Angeles California
Corvette Enthusiast
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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.
