i bought all autometer gauges since after the 3800sc swap only 2 worked the performance shop said for a GM i nee 0ohms empty and 90 ohms full is this correct or do i have the wrong guage

i know i have a 1/4 tank in the car as my stock fuel guage did work but now it says i have a full tank i thought it might be the groundso i re did the ground

99 Z24 so you know
Gorund goes from the guages GND port to bare metal body ground
Source port i used the purple wire of the back of the factory guages labled FUEL GAUGE SENSOR SIGNAL (B7 on the connector)
Ignition port i used the pink Ignition positive to power the guage up when the key is on used A4 OFF RUN CRANK

anyone put these in


JBO since July 30, 2001

Fawk according to this http://www.j-body.org/forums/read.php?f=2&i=313135&t=312680#313135

the 99s use 40omhs empty and 240 full


JBO since July 30, 2001

40-240 is very typical on newer GMs actually.



I used to race cars, now I race myself.
5K PB: 24:50
10K PB: 54:26

what a paint the guage i need is a full sweep and is 149 the guage i had was 69 FAWK

gotta pay to play i guess, got a rusted fitting on the filter thats starting to weep so it looks like i'm getting a plastic tanks and a blazer pump then my fuel system will be set


JBO since July 30, 2001

Yup... that's why when you go from a 95-98 to an Eco swap (or newer, say 99 or 02 whatever harness for the newer gauges and all..) you have to swap the fuel pump assembly.

I did an Eco swap to my 98 Z24, and with a full tank it read below a quarter tank on the 03 gauges...

so what would an 01 or newer need?


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little help people.



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READ THE ABOVE POSTS


JBO since July 30, 2001

NOTa2_4 wrote:READ THE ABOVE POSTS

well im lost lol is it the 40-240 the one for 01's an up then?


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Up to, and including 1998 cars: 0 ohms empty and 90 ohms full

1999 and up cars: 40 ohms empty and 240 ohms full

thanks lenko, i just wanted to make sure i was seeing it right. ive allready got the wrong one so i just wanted to double check before i switch it out.


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