Fuel gauge issues

[johnmlebel]

66 with new wiring , new sender, new constant voltage regulator gauge pegs full all the time when hooked up.

I have tested the sender out and read fine and in with over half a tank right now it reads 22 ohm at the sender. I've ran wires directly to the sender and up to the dash and it reads 22 ohm again. As soon as I hook up to the gauge it reads way past full on 2 original and new gauges and also on a brand new autometer gauge that is the correct ohm ratings. What am I missing? It's all new wiring in the truck and I ran directly there with 2 wires to eliminate wiring being the cause but I'm not sure what to try next.


Just ran the 2 wires from the sender to the battery area ohm still reads 22 on the ohm meter. I hook the sender wire to s post on the autometer, the the ground from the sender right to the negative battery post and then a wire from the positive post to the I post on the gauge immediately goes past full.


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[Oleguy 74]

there is another post with fuel gauge issues.read my post from oleguy.

 

[johnmlebel]

I've read the post. It doesn't exactly help me at this point. I've verified power and ground and also test each item separate and verified they work. I have the correct wiring diagram already and this is a brand new painless harness, but even so. running wires directly to the gauge it should work correctly i would think. I guess my other question is, Do I need to run the constant voltage regulator with an autometer gauge also or no? the loop would be 12v power to ivr to gauge to sender and sender to ground? or that with no ivr?

 

[Oleguy 74]

i might be wrong but iff you connect a wire - post directely and a wire from + post on batt it should go full scale as there is no restance.also make sure autometer gauge is correct as in 10-73 ohm range.

 

[johnmlebel]

I figured it out. No Ivr.

Mods can delete if they want to. Thanks.

 

[.94 OR]

Delete?
Heck no, good info.