Need Help! - Rallye Dash Oil Pressure Gauge

[marianamaya]

Rebuilt my Rallye Dash and got every gauge working but the Oil Pressure Gauge. 340 Car.

The way I figure it, either the sending unit, wiring, voltage limiter, gauge, or some combination of these are bad.

I checked the gauge with an Ohm meter before installing it and it was good.

Figured I'd get a new sending unit and go from there. I wanted to get your thoughts on the best way to troubleshoot this. Anyone have any experience here that could save me some time and headache?

Thanks,

Pete

 

[mewk61]

I had the same thing last week. Spent the eight dollars and replaced the sending unit. Problem solved.

 

[Rocky_JS]

power off, use an ohm meter to the end of the sender wire and ground should be around +/- 20ohm. no - check the bulk head and round harness connectors. if good, either go out and buy a 75ohm resistor (high) or replace the sender still cheap. 1.00 vs 10.00 but the with the sender cant really go wrong

 

[marianamaya]

Thanks for the info Rocky. Where would I install the resistor?

 

[Rocky_JS]

aye - use as if a sender and ground. One end to end of wire other end to a good ground