IS there a water temp wire that i can just tap into so i can hook up my Autometer water temp gauge? i have an 92 CX with a B18C1.. thanks

 

just pull out the stock sending unit,its right under the distributer,has one wire going to it.

the sender for the digital gauge from summitt should fit right into the same hole,i just did one of these in a freinds crx,works nice.

 

What I did was ran my wire through the harness and soldiered it to the wire coming off the stock sending unit about 2 inches down from the acutal sending unit.
Now both my stock temp gauge and my autometer gauge work at the same time.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Strem &raquo;</TD></TR><TR><TD CLASS="quote">What I did was ran my wire through the harness and soldiered it to the wire coming off the stock sending unit about 2 inches down from the acutal sending unit.
Now both my stock temp gauge and my autometer gauge work at the same time.</TD></TR></TABLE>

So what do you have the auto meter sending unit in ? If you cut into the stock sending unit you will not get an accurate reading. A lot of people just use the spot on the thermostat where the bleeder bolt is, but since I did not have that spot I did mine like this.

 

this is waht we used and it screwed right into the stock location.

http://store.summitracing.com/...image
http://store.summitracing.com/...image about $45

 

My water temp gauge is actually very accurate. As is my stock one. don't know what to tell ya. Maybe you should try to run a temporary wire and just connect it to the stock sending unit wire, and see if you get the same results I did?? Or just disconnect the stock wire all together.

 

pull your gauger cluster out, you can tap the yellow/green wire in there.

or look on your sensor for the wire color. i think that's right. works fine, and dont need to run wire through you engine bay.

platinum.

 

does this only work on mechanical guages or electrical too? i have an electrical water temp guge that i tried to wire into the green wire and it dont work. keep in mind mine is a 1st gen b16 of that matters

 

electrical. it works

find you stock water temp sensor. look what color the wire/wires are going to it. then tap the same color wire behind your gauge cluster.

i think there are 2 green/yellow ones back there. if so then there should only be one yellow/green wire. which ever one there is 1 of. tap that one. i forget right now.

platinum.

 

Go get a temp probe from a hobby store for $36 it'll be cheaper and just mount it some place ez to read after you can mount it in a place where it goes to the water.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Strem &raquo;</TD></TR><TR><TD CLASS="quote">My water temp gauge is actually very accurate. As is my stock one. don't know what to tell ya. Maybe you should try to run a temporary wire and just connect it to the stock sending unit wire, and see if you get the same results I did?? Or just disconnect the stock wire all together. </TD></TR></TABLE>

How do you know its accurate, did you ever test the theory and do an experiment, someone on this board actually tested it out and came up with results, and heres what he said.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Wide Open Throttle &raquo;</TD></TR><TR><TD CLASS="quote">mm.. i did a little science experiment and found that the autometer sender read about 1000 ohms more on the hot side(same for the cold side) than the honda thermistor. this translated to about a 10-20 degree difference on the cold side as well as the hot side (when the honda read 100 degrees celcius the autometer read 110). i used boiling water and an ice bath for hot and cold temperatures, respectively. i read resistance with a multimeter.
i wired it up to the honda ECT sensor, though, and the ecu sure enough threw a code. it also read 200+ degrees when the engine was luke-warm (can't figure that one out).

anyway, im just going to use the autometer sender at the upper radiator hose.

thanks to everyone for the input.</TD></TR></TABLE>