Fuel Gauge (yes I searched)

[project92]

I am trying to remember if the gauge needle falls to empty when the ignition is/was shut off before the swap (again 1992 c1500 and he oe harnesses cut).

It seems like my gauge needle is not falling when I shut off the ignition. When I turn the ignition back on the needle will climb. Example::: turn off with 1/4 full showing /// turn on, it rises to half /// next turn on, it will rise to 3/4 and so on, until the needle reaches about a 4'oclock position, then never moves.


This post, has no conclusion, but sounds similar > http://www.ls1truck.com/forums/lsx-t...uel-gauge.html

[brian1987]

My 1991 always did that. It was an everyday thing.

[ChevyLee]

on my 98 it goes down some when i shut off.. but not to empty

[project92]

As it turns out the sending unit is not grounding correctly. I will splice in and add an extra grounding spot.

Thanks.

Jon

[richardacampbell]

I am having trouble with my dash. The tach, fuel gage, and I think oil pressure are not working. However my spedo does work.. We did an LQ9/LS6 upgrade to my 1996 GMC.. Any thoughts?

[richardacampbell]

Oh ya engine temp doesn't show correct either. I've checked it with HPTuners and it reads correct. Not sure what's up, maybe a bad ground. I'll check that next.

[project92]

My grounding and wiring problems come from the truck being stolen and stripped and the cutting of the OE harnesses.

I have used a Nelson harness and PCM tune. The tach wire that comes out of the pcm sends a different signal than my 1992 tach reads. Causing my tach to run about half RPM's. Thus, I needed to purchase a module from Bakerelectronix > http://mysite.verizon.net/vze7erz1/id1.html#tsdmod <. The module I purchased is the ATSD. Does it work,, don't know I have not put it in yet.

I have yet to tackle the Oil and Water. For the water temp I know I need to use the '92 OE sending unit and wire that in to the appropriate wires. I am going to install it into the plug that is on the rear of the right head (by the rear exhaust port).

[RedHeartbeat]

The BakerElectonix tach module works great. I worked with him to get the the first one right and my tach read perfectly in my 92 with LS1.

[richardacampbell]

We had it working perfectly with the drive by cable but when we went to drive by wire we lost everything on the dash except for the spedo.

[project92]

Beyond me. You have a whole new set of rules to play by.