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View Full Version : my electric autometer gauge seems to stay at 50 psi.. why?

98tadriver
10-25-2007, 08:12 PM
just installed it today. i put it in the spot that sits on top of where the oil filter is. i turn the key on and it goes to 50psi.... i start the car and run it, it stays at 50psi.. run it thru high rpm... stays at 50psi! whats up with that? thanks for any help that u may provide!
WildBillyT
10-25-2007, 10:54 PM
First things first- check all of your connections. You may have reversed some of them.
BonzoHansen
10-25-2007, 11:21 PM
First things first- check all of your connections. You may have reversed some of them.

+1 you got something backwards.
Batman
10-26-2007, 08:39 AM
That is right around what an LS1 will be at normally 40-60, but it shouldn't move at all until you start the car. Check the ground wire
98tadriver
10-26-2007, 09:56 AM
thanks fellas, i shall do that and post what i did wrong lol
98tadriver
10-26-2007, 01:25 PM
all connections are correct. im guessing the sender could be bad, so im going to get a new one sometime
Fast92RS
10-26-2007, 01:54 PM
did you use teflon tape on the sending unit?
98tadriver
10-27-2007, 12:54 PM
did you use teflon tape on the sending unit?

indeed i did. it said to use A sealer so i figured teflon tape would be fine. its not leaking or anything, but do u think its messing up the ground? because on the directions it said the sender should ground itself. maybe i could touch a wire to it and to a good ground and have a friend look a the gauge to see if it changes anything before i go taking it out
Fast92RS
10-27-2007, 01:15 PM
that happen to me once with using teflon tape. Try using a liguid or paste pipe thread sealant instead of teflon tape.
WildBillyT
10-28-2007, 06:45 PM
indeed i did. it said to use A sealer so i figured teflon tape would be fine. its not leaking or anything, but do u think its messing up the ground? because on the directions it said the sender should ground itself. maybe i could touch a wire to it and to a good ground and have a friend look a the gauge to see if it changes anything before i go taking it out

What you can do is bench-wire it. Don't install the gauge in a pod or anything, but keep it loose so you can check the connections. If you are sure they are right, and you are SURE you have a good ground, then replace the sender.
Injuneer
10-29-2007, 04:55 PM
Does the pressure connection on the LS1 fuel system require that you remove the core from the valve?
98tadriver
10-29-2007, 10:10 PM
Does the pressure connection on the LS1 fuel system require that you remove the core from the valve?

lol this is an oil pressure gauge, not fuel.