I posted my previous issues with the spectra tank in the link below.
Prior to swapping over to speedhut gauges I had no significant issues with the fuel gauge beyond the normal inconsistencies. It read full (mostly) when it was full and when it got to ~1/4 of a tank I refilled.
Installed the speedhut programmable and it seemed to work, right away with the 70-10 ohm setting (E-F).
Then I went to fill the tank and it went to E. Pegged at E. Of course I assumed it was the gauge. So I drove around with it like that all day then when I got home I reprogrammed it and it resolved, went to Full. Unfortunately it stayed at full for about 2 days. So I disassembled the dash and check connections. Somewhere in the 15 times I hooked and unhooked the gauge it went to about 3/4 tank and stayed then slowly creeeped up to near F. (I neglected to check ohms at that point) But it was responding so I left it alone.
Worked well for that tank. Seemed to act as expected. Out of habit, I filled up at 1/4 tank and it pegged at E. So, I checked ohms at gauge, and at the tank. Should have read ~15-18ohms since tank was full. Unfortunately both read ~84. I've since driven it more and rechecked and now it's hovering around 80ohms.
So I reprogrammed the gauge to read 90-10 and it's showing slightly above 3/4 tank. Which is probably close but that's not the way this is supposed to work.
In my head I'm thinking that the fuel sender float is bent in some way so that when it's at the most full it has a weird inaccuracy where it slides up the arc of the sender and reads 85ish ohms but as the tank empties it slides back down into normal path and then starts reading in a more linear way like it's supposed to. That might explain why it read correctly initially with 1/4 tank and worked better after I drove it a bit on the first E on full event.
Grounds check out so I don't think that's an issue. I can't blame the gauge because it's reading the 80ish ohms correctly.
I really don't want to take this sender/tank apart again. Any ideas or suggestions would be greatly appreciated.
http://forums.vintage-mustang.com/v...FjAAegQIBRAB&usg=AOvVaw0atNYEDJZRGcvWM-0pUt7z
Sent from my SM-G935V using Tapatalk
Prior to swapping over to speedhut gauges I had no significant issues with the fuel gauge beyond the normal inconsistencies. It read full (mostly) when it was full and when it got to ~1/4 of a tank I refilled.
Installed the speedhut programmable and it seemed to work, right away with the 70-10 ohm setting (E-F).
Then I went to fill the tank and it went to E. Pegged at E. Of course I assumed it was the gauge. So I drove around with it like that all day then when I got home I reprogrammed it and it resolved, went to Full. Unfortunately it stayed at full for about 2 days. So I disassembled the dash and check connections. Somewhere in the 15 times I hooked and unhooked the gauge it went to about 3/4 tank and stayed then slowly creeeped up to near F. (I neglected to check ohms at that point) But it was responding so I left it alone.
Worked well for that tank. Seemed to act as expected. Out of habit, I filled up at 1/4 tank and it pegged at E. So, I checked ohms at gauge, and at the tank. Should have read ~15-18ohms since tank was full. Unfortunately both read ~84. I've since driven it more and rechecked and now it's hovering around 80ohms.
So I reprogrammed the gauge to read 90-10 and it's showing slightly above 3/4 tank. Which is probably close but that's not the way this is supposed to work.
In my head I'm thinking that the fuel sender float is bent in some way so that when it's at the most full it has a weird inaccuracy where it slides up the arc of the sender and reads 85ish ohms but as the tank empties it slides back down into normal path and then starts reading in a more linear way like it's supposed to. That might explain why it read correctly initially with 1/4 tank and worked better after I drove it a bit on the first E on full event.
Grounds check out so I don't think that's an issue. I can't blame the gauge because it's reading the 80ish ohms correctly.
I really don't want to take this sender/tank apart again. Any ideas or suggestions would be greatly appreciated.
http://forums.vintage-mustang.com/v...FjAAegQIBRAB&usg=AOvVaw0atNYEDJZRGcvWM-0pUt7z
Sent from my SM-G935V using Tapatalk