Let's play "What's this wire?"
Thread Starter
Instructor
Joined: Dec 2000
Posts: 188
Likes: 0
From: Eastern Shore, AL
Let's play "What's this wire?"
I've been trying to get my oil pressure gauge working ( it stays pegged) replaced the sender and still pegged. I've had the gauges out and didnt read a problem with the printed circuit. But while I was replacing the sender (orange wire) I found a yellow wire that is not connected to anything under the brake booster It comes out through the firewall with the rest of the wires. I dont think it is a ground but I guess it could be. Chilton's is no help I need AIM I guess.
Melting Slicks
Joined: Oct 1999
Posts: 2,581
Likes: 14
From: Tolar Texas
Re: Let's play "What's this wire?" (SharkGills)
Looks like were in the same boat regarding the oil pressure gauge!
http://forums.corvetteforum.com/zerothread?id=178672
As far as the "yellow" wire goes, I can only take a shot in the dark but maybe it is or was part of an aftermarket add on accessory? Is it bright yellow or is it more a dull yellow color with a stripe?
http://forums.corvetteforum.com/zerothread?id=178672
As far as the "yellow" wire goes, I can only take a shot in the dark but maybe it is or was part of an aftermarket add on accessory? Is it bright yellow or is it more a dull yellow color with a stripe?
Le Mans Master
Joined: Jan 2000
Posts: 8,918
Likes: 27
From: New Hill NC
Re: Let's play "What's this wire?" (MIKER)
No factory ground wire would be yellow.
To check the gauge out, do this. With the ignition on, remove the wire from the sender. Check the reading. Ground the wire and recheck the reading. The reading should make a full deflection each way. If it does, then the circuit is OK and you will need to replace the sending unit. If it does not, you will need to check out the gauge and wiring.
To check the gauge out, do this. With the ignition on, remove the wire from the sender. Check the reading. Ground the wire and recheck the reading. The reading should make a full deflection each way. If it does, then the circuit is OK and you will need to replace the sending unit. If it does not, you will need to check out the gauge and wiring.
Melting Slicks
Joined: Oct 1999
Posts: 2,581
Likes: 14
From: Tolar Texas
Re: Let's play "What's this wire?" (wombvette)
To check the gauge out, do this. With the ignition on, remove the wire from the sender. Check the reading. Ground the wire and recheck the reading. The reading should make a full deflection each way. If it does, then the circuit is OK and you will need to replace the sending unit. If it does not, you will need to check out the gauge and wiring.
Grounded, the gauge went to zero.
Open (disconnected), the gauge pegged high.
I connected my multi-meter to the sending unit to check continuity.
Engine off, it showed full continuity. Engine running, it was completely open.
I'm wondering if this particular sending unit is meant to be used with a "dummy" light instead of a gauge?
Team Owner
Joined: May 2001
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From: Exiled to Richmond, VA - Finally sold my house in Murfreesboro, TN ?? Corner of "Bumf*&k and 'You've got a purdy mouth'."
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Re: Let's play "What's this wire?" (MIKER)
I connected my multi-meter to the sending unit to check continuity.
Engine off, it showed full continuity. Engine running, it was completely open.
I'm wondering if this particular sending unit is meant to be used with a "dummy" light instead of a gauge?
Engine off, it showed full continuity. Engine running, it was completely open.
I'm wondering if this particular sending unit is meant to be used with a "dummy" light instead of a gauge?
Pro
Joined: May 2000
Posts: 600
Likes: 0
From: Staten Island NY
Re: Let's play "What's this wire?" (BSeery)
I have a yellow wire under the brake booster that goes to the secondary horn which is not connected. I think it was for the factory alarm.
hope this helps
Vic
hope this helps
Vic
Thread Starter
Instructor
Joined: Dec 2000
Posts: 188
Likes: 0
From: Eastern Shore, AL
Re: Let's play "What's this wire?" (MIKER)
Well the wire definately looks factory. It's not to the aux. horn, I saw that wire and it was a bigger gauge wire. I also looked at the windsheild washer pump and it had a red and black wire coming off of it, I traced it back a ways and found it had been spliced :mad: So it is not that one either. I grounded the oil press. wire and the gauge pegged open and disconnected it does'nt move at all stays almost pegged. Is there a spring or something in the gauge that is supposed to return it to 0?
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