1996 LT$ Throttle Position Sensor
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Joined: Sep 2013
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From: Cape Coral, Florida
If you went WOT with the TPS sensor reading you have the engine most likely will go into “reduced power” mode and you would get a trouble code…is that what it did ??…that would not cause your misfires.
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Burning Brakes
Joined: Apr 2007
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Thanks!
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,704
Likes: 4,103
From: Cape Coral, Florida
When you said the reading said “OL” did you mean 0 volts ???…OL is a resistance reading when you are on the ohms scale !!…you sure you’re using your multimeter correctly ???…P0304 is a #4 cylinder misfire and the P0122 is a TPS code.
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Burning Brakes
Joined: Apr 2007
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I had it set to VDC, and "OL" came up on the screen maybe 7/8's of the way to WOT. .
I've used the ohms meter the most...guitars, amps etc....Usually get the "OL" when a pickup or something has a broken lead and is dead. If this makes no sense, maybe I'll just have to try again.
Yes...I guess the P0122 is what got me looking at the TPS.
It's just kinda been like.."ring around the fault codes" lately...
Thanks...
I've used the ohms meter the most...guitars, amps etc....Usually get the "OL" when a pickup or something has a broken lead and is dead. If this makes no sense, maybe I'll just have to try again.
Yes...I guess the P0122 is what got me looking at the TPS.
It's just kinda been like.."ring around the fault codes" lately...
Thanks...
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Thread Starter
Burning Brakes
Joined: Apr 2007
Posts: 1,003
Likes: 13
I promise, I'm not using the staple "Centech" you see everyone using, LoL...
it's an older Craftsman one. Had a Fluke, but like this one more. Mainly used it for guitar and amp stuff. Always been very good. Could very well just be "pilot error". If it stops raining, I'll go try again...
Thanks...
it's an older Craftsman one. Had a Fluke, but like this one more. Mainly used it for guitar and amp stuff. Always been very good. Could very well just be "pilot error". If it stops raining, I'll go try again...
Thanks...
Thread Starter
Burning Brakes
Joined: Apr 2007
Posts: 1,003
Likes: 13
Well I did it all over again...
Black .015 Key in
Grey 5.00 Key in
Blue .586 closed...4.51 WOT
This time, when I moved it open and closed, I got the "OL" in there in different spots...Kept working it, and now it no longer does the "OL" at all.
The TPS is basically a potentiometer, right? Reminds me of stuff I have seen with guitars. Luckily, I'm a little more at home with that stuff. You get like a guitar from the 50's with CTS pots...sounds are crackly when you turn the volume up. Spray some cleaner in there, work it back and forth, and it's fine. Then you get something more contemporary, with "sealed" pots. They go bad, and you just have to replace them. Kind of more like what this TPS is, I am thinking...
So when working it back and forth made the "OL" go away, had me thinking...Maybe it just has dirty traces inside. Probably just metal on metal for 27 years,,,Plausible?
I don't plan to hack it open and attempt to clean it or anything, ha ha...Kind of more wondering if it's worth chasing and ordering a new one...
Black .015 Key in
Grey 5.00 Key in
Blue .586 closed...4.51 WOT
This time, when I moved it open and closed, I got the "OL" in there in different spots...Kept working it, and now it no longer does the "OL" at all.
The TPS is basically a potentiometer, right? Reminds me of stuff I have seen with guitars. Luckily, I'm a little more at home with that stuff. You get like a guitar from the 50's with CTS pots...sounds are crackly when you turn the volume up. Spray some cleaner in there, work it back and forth, and it's fine. Then you get something more contemporary, with "sealed" pots. They go bad, and you just have to replace them. Kind of more like what this TPS is, I am thinking...
So when working it back and forth made the "OL" go away, had me thinking...Maybe it just has dirty traces inside. Probably just metal on metal for 27 years,,,Plausible?
I don't plan to hack it open and attempt to clean it or anything, ha ha...Kind of more wondering if it's worth chasing and ordering a new one...
