- Location
- Roanoke VA
I am with Prom3theus on the issue of resistance. The wire size and length should not be an issue,...I would not think so. However, I still think :--
1) The gage and the sender/s are not compatible.
2) The wiring is not correct.
3) There is a grounding issue at the gage.
4) The switch (to switch between the two sending units) is bad.
5) The sending units themselves need to be grounded properly.
It is good to hear that the AW4 is good just the messenger is misrepresenting the truth.
I too have two senders, one gage and a switch to switch between the senders. While it appears the reading is accurate (enough) they are slow to respond when switched i:e the will linger about 20 degrees lower and come up to the actual temperature after a couple of minutes. Mostly, I just leave the switch to display the temperature coming out of the AW4.
I'm using two B&M senders. The gauge is grounded to the stud at the steering column/cowl. The switch could be bad, i will change that tomorrow. The sending units are grounded checked with an ohm meter.
My gauge will lag between the two senders as well when switching, I found that to be odd also.
I'm going over the whole circuit tomorrow and simplify it if i have to.