aftermarket temp gauge

[fx gt]

have a aftermarket temp gauge
but it dosnt work

it has power,negetive and sender hooked up
car is a ae92 4age. i have the temp sender unit on the top rad pipe close to the dizzy. when i turn the ingition on the gauge turns on but goes straight to 40.c and thats where it stays!

commen problem here or have i set it in rong place?

[.:O4AGTZ:.]

im pretty sure its somethin to do with the fact that from factory it reads either right temp or wrong temp, and not an actual temperature. so when you turn it on it just goes straight up. its an on or off signal

[.:O4AGTZ:.]

im pretty sure its somethin to do with the fact that from factory it reads either right temp or wrong temp, and not an actual temperature. so when you turn it on it just goes straight up. its an on or off signal....sorry my mind is a bit dead im sure someone else will explain it in a more helpful way if that is the problem haha

[ollieboy]

They usually earth through Temp sender so if its not right it will fugger up your reading. Also, is it an aftermarket sender too?

[matt dunn]

i have the temp sender unit on the top rad pipe close to the dizzy.

Is it in a pipe in the middle of two rubber hoses?
Is the base of the sender or what the sender is screwed into earthed?

[fx gt]

i have the temp sender unit on the top rad pipe close to the dizzy.

Is it in a pipe in the middle of two rubber hoses?
Is the basxe of the sender or what the sender is screwed into earthed?

first question-yes
secound question- no

[fx gt]

They usually earth through Temp sender so if its not right it will fugger up your reading. Also, is it an aftermarket sender too?

yes its running aftermarket one

[postfach]

I'm gonna guess if you answer yes to matts first question you need to answer yes to question 2 for it to work properly, try earthing the body of the sender or the metal pipe thing its screwed into

[ollieboy]

Yeah, like I said above, the temp sender has to earth or it wont read right.

[fx gt]

earthed metal pipe where sender goes and still does same thing, do i need to earth the gauge to the sender?

[Stealer Of Souls]

Are the sender and gauge a "matched pair"? I.E. Same vendor?
Most vendors will match their gauges to their senders. Assumably many senders are the same, but I suspect there are some that aren't... Can anyone else confirm?

[fx gt]

got it working sweet
i grounded it but didnt warm it up

working mint now so thanks,before i had no idea what temp it was running