I don't remember if I mentioned it or not, but I've been working on a complete renovation of the stock gauges in my 86 NA 5-speed. I've already pulled everything else out of the car and installed nearly every gauge. I have a few issues, though. The first deals with the fuel gauge. I'm not entirely sure if I found the right wires for the fuel tank level, but the reading I get looks about right. I just can't be sure. The needle also moves about 1/8 or so of an inch when I hit the brakes or put it into reverse. I used the black/white wire off of one side of the wiring harness to the stock gauges, and the black/yellow wire off the other side. It appears to work fine, but I'm not sure. It still fluctuates when the brake/reverse lights come on. Any ideas on this?

Another thing is that since I've done this, I get a "beep, beep, pause", but only when I turn the running lights/headlights on. What is this and how do I fix it? Thanks in advance!

I can't seem to find any answers in the search.


Btw, black carpet has arrived. Will be going in this weekend most likely!

 

2-beeps, pause, repeat - in case abnormality of engine speed signal:
The buzzer sounds twice and repeats when the vehicle speed signal is missing input and/or no engine speed signal is found (short circuit, broken wire, etc.)

 

Thing is, I've already read that. I searched it and found it. That's only when the car has been running for so long and I get above a certain speed. No lights. This beeping that I'm talking about comes on the second I turn on the running lights or headlights. I have a feeling it's linked to the gauge face being disconnected, but, to be honest, I'm not sure.

 

Still having a problem with the gas gauge. Nobody knows?

 

sounds like you are having a voltage problem. when you hit the brakes or put it in reverse you are activating another circuit that I am guessing that is why your gauge is changing. The same thing fits for when you turn on the lights. I would check the voltage at the battery when you do one of those things compared to normal then I would check the voltage at the gauges when you do those things. If there is a voltage drop at either place that is your problem.

 

I've come to the conclusion that I used the wrong wires. That's the least of my concerns at the moment. I guess I'll chase them down myself unless someone knows which two wires to use from the instrument cluster wiring harness to use.

I've also learned after doing more searching that when I removed the stock instrument cluster to replace it with my project that I effectively disconnected the speed sensor in the speedometer (which didn't work) and the tach from the ECU. What do I have to do to fix my beeps? I hear "beep, pause, beep, pause" and "beep, beep, pause, beep beep, pause". I think I'm going to go crazy! :P

I know what these beeps mean. I just need to fix them. Any help with KEEPING the aftermarket setup. I already know there's going to be someone who says "Put the stock cluster back in." Anyone? Thanks.