If you ground the inputs, they should peg the other way.
Guage question
Thread Starter
Burning Brakes
Joined: May 2005
Posts: 1,158
Likes: 46
From: RedSoxNation Cape Cod, MA
Guage question
Hello,
The previous owner got a hold of my 1977 guage panel and now I am working out the bugs. I just have a quick question about the factory guages (center console guages).
If I apply the ignition power to the guages but none of the sensors are hooked up (fuel sender, oil pressure, water temp sensors), what should the guages do? The volt guage reads 13v but the others, without anything hooked to them, pin themselves the the right.
I am assuming the sensors run on a resistance of some type.
Let me know if it sounds like something it hooked up wrong.
Thanks
Jim
The previous owner got a hold of my 1977 guage panel and now I am working out the bugs. I just have a quick question about the factory guages (center console guages).
If I apply the ignition power to the guages but none of the sensors are hooked up (fuel sender, oil pressure, water temp sensors), what should the guages do? The volt guage reads 13v but the others, without anything hooked to them, pin themselves the the right.
I am assuming the sensors run on a resistance of some type.
Let me know if it sounds like something it hooked up wrong.
Thanks
Jim
Team Owner
Joined: Oct 2004
Posts: 23,831
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From: Springfield MO
St. Jude Donor '07
Racer
Joined: Sep 2007
Posts: 253
Likes: 0
From: Pearlington Mississippi
So would i be correct saying my fuel sending unit inside the tank of my 81 is bad,if with power applied,it allways reads full,upon direct grounding it reads empty?
They are all new autometer guages.
They are all new autometer guages.
Last edited by steve228; Apr 24, 2008 at 02:19 PM. Reason: additional info
Racer
Joined: Apr 2007
Posts: 361
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From: Sacramento (Citrus Heights) California
Le Mans Master
Joined: Apr 2005
Posts: 6,359
Likes: 428
From: Seattle Area WA
No adustment on the sender, I believe it is a 0-90 ohm sender, you can check it with a ohm meter. The autometer gauges for fuel are available for the different sender resistance values.
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Racer
Joined: Sep 2007
Posts: 253
Likes: 0
From: Pearlington Mississippi
Touche' Thanks for that info, i did not know that. So does that mean i have to replace it and match it to the ohms of my sender?
Thread Starter
Burning Brakes
Joined: May 2005
Posts: 1,158
Likes: 46
From: RedSoxNation Cape Cod, MA
Thanks for the info. I am haveing Temp sensor issues right now. What could it be?
When the ignition is on, and everthing is plugged in the car, the temp sensor peggs to the right.
I used a jumper wire from the guage to the sender to make sure it not the factory wire and it did the same thing.
If i ground the sensor wire and turn the ignition on,the guage appears not to do anything (maybe goes to the left a little bit).
Does this mean it is a bad sensor or a bad guage?
Thanks for the help!
Jimbo
When the ignition is on, and everthing is plugged in the car, the temp sensor peggs to the right.
I used a jumper wire from the guage to the sender to make sure it not the factory wire and it did the same thing.
If i ground the sensor wire and turn the ignition on,the guage appears not to do anything (maybe goes to the left a little bit).
Does this mean it is a bad sensor or a bad guage?
Thanks for the help!
Jimbo