Pics of my swap

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May 27, 2007 | 09:58 AM

#21

blahster

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From: Mason City, IA

Quote:

Originally Posted by the_merv

K.. it's doing what I was thinking earlier. The LT1 Fuel Gauge works like all the old cars, there is a Hot, Ground, and Signal Wire. The '99 up LS1 has a Wire that comes from the Sender and goes to the Harness, to the Computer, and then out to the Gauge Cluster at the Fuel Level Wire.
If you un-plug or cut out the LT1 Wires, it is probably not getting any signal, and saying it's full all the time.

So basically i would need to run all new wire up to the PCM and then another wire to the LT1 gauge cluster or my autometer gauge....

guess i better look up the wiring again...

And yeah, you should shoulda seen some of the looks people were giving me at the car show yesterday...lol! it was great!

May 27, 2007 | 10:22 AM

#22

the_merv

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From: The Beach...

What you might have to do is figure out which wire is the Level Signal Wire, and get that directly to the Gauge. It might work, it might not. If you still have the LT1 Wires there, see if you can trace it.

I am trying to get mine finished up.. make it one hell of a sleeper..

May 27, 2007 | 02:20 PM

#23

blahster

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From: Mason City, IA

I just found the wires and read the resistance between them...they read that the level is at around 200ish ohms....so that would lead me to believe the the range would be about 90-270 ish? maybe? the gauge i have is the autometer carbon fiber 0-90 and it maxxed out the gauge....

i think if i rig a resistor in parallel with the 2 wires i would get the right signal...i'll look more into it...

May 28, 2007 | 05:05 PM

#24

Phil99vette

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From: Port Tobacco, MD

Great looking car!

May 28, 2007 | 05:15 PM

#25

the_merv

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From: The Beach...

Yea, see what you can do with it. Try getting it to the Factory LT1 Gauge and see what it does.

May 28, 2007 | 05:30 PM

#26

cabech984

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From: Ohio

Quote:

Originally Posted by blahster

i think if i rig a resistor in parallel with the 2 wires i would get the right signal...i'll look more into it...

Nice car!!! Off topic, but how do you like Japan? I was stationed @ Camp Fuji in 03-04 and loved it!!

May 29, 2007 | 12:40 PM

#27

RE AND CHERYL

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From: Dover DE

The LT1 fuel gauge won't work with the LS1 sending unit. The LT1 uses a 0-90 ohm resistance and the LS1 uses something like 100-240 ohm resistance. It's the reason I'm retaining the LT1 fuel tank in my conversion.

Re'

May 29, 2007 | 04:02 PM

#28

blahster

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From: Mason City, IA

Had i known this when i did my swap...i would have retained the LT1 tank as well...lol! oh well! guess i'll just have to get a different autometer gauge then...it's all good!