fuel cell

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fuel cell

Postby sportster96blk » Fri Apr 29, 2011 9:39 pm

how do i wire my fuel cell so it reads ? Ive got a rci 0-90ohms fuel cell with a fuel gauge . is the center wire a 12 volt or not ......here's a pic of how i have it wired and it dont work.......george
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Re: fuel cell

Postby Rickracer » Fri Apr 29, 2011 9:52 pm

The center wire is the Sender wire, but won't be 12 volts, it should come from the "S" terminal on the gauge. 8)
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Re: fuel cell

Postby sportster96blk » Sat Apr 30, 2011 1:08 am

well i not sure which wire goes to the s side of the sender, its the in dash stock one. ive got a black and brownish colored wires off the old sending unit.
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Re: fuel cell

Postby spencerforhire » Sat Apr 30, 2011 6:34 am

The tan(brownish) wire is for the sender and the black is of course ground. There appears to be an extra ground on your fuel cell "just in case". NHRA has rules about grounding plastic fuel cells to prevent static sparks.
The "fleet"-
72 Vega HB Drag Car -383/'Glide/9"(9.35@146.19)(5.94@117.28 1/8th)
77 Vega Estate wagon- project(someday)will have TPI305/T-5, S-10 spindles/axles
76 Vega GT- 400/4spd/9" retired from active duty(rusty)
06 Silverado 2WD ex.cab daily
03 Silverado 2WD ex.cab (retired)
06 Haulin' 20ft enclosed car transporter
06 GMC Canyon Shop truck
07 Colorado project( 5.3 4L60e swap)
99 Saturn SL1- wife's car
01 Saturn SC2- son's project
07 Saturn Ion Redline project
and 4 more Saturn "parts cars"
Note- the very act of listing all of these has made me realize I have some kind of problem.....

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Re: fuel cell

Postby sportster96blk » Sat Apr 30, 2011 1:54 pm

so why does it not read. because thats how i have it wired
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Re: fuel cell

Postby spencerforhire » Sat Apr 30, 2011 5:53 pm

The sender is just a variable resistor; if you disconnect the tan wire, the gauge should go all the way up; if you touch it to ground, the gauge should go all the way down.
The "fleet"-
72 Vega HB Drag Car -383/'Glide/9"(9.35@146.19)(5.94@117.28 1/8th)
77 Vega Estate wagon- project(someday)will have TPI305/T-5, S-10 spindles/axles
76 Vega GT- 400/4spd/9" retired from active duty(rusty)
06 Silverado 2WD ex.cab daily
03 Silverado 2WD ex.cab (retired)
06 Haulin' 20ft enclosed car transporter
06 GMC Canyon Shop truck
07 Colorado project( 5.3 4L60e swap)
99 Saturn SL1- wife's car
01 Saturn SC2- son's project
07 Saturn Ion Redline project
and 4 more Saturn "parts cars"
Note- the very act of listing all of these has made me realize I have some kind of problem.....

Visit http://www.spencerforhire.ca
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1972 Chevrolet Vega Hatchback

Re: fuel cell

Postby sportster96blk » Sun May 01, 2011 1:14 am

it does. know what i need it to read the fuel level?
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Re: fuel cell

Postby spencerforhire » Sun May 01, 2011 7:29 am

If your gauge is "stuck" on empty, it could be as simple as the wire is touching ground on the under side of the sender. You might have to pull the sender out of the tank to check it, and while you're in there, manually raise and lower the float to check it's operation. A 0 to 90 ohm sender should read exactly that; near 0 at empty, and 88-92 on full.
The "fleet"-
72 Vega HB Drag Car -383/'Glide/9"(9.35@146.19)(5.94@117.28 1/8th)
77 Vega Estate wagon- project(someday)will have TPI305/T-5, S-10 spindles/axles
76 Vega GT- 400/4spd/9" retired from active duty(rusty)
06 Silverado 2WD ex.cab daily
03 Silverado 2WD ex.cab (retired)
06 Haulin' 20ft enclosed car transporter
06 GMC Canyon Shop truck
07 Colorado project( 5.3 4L60e swap)
99 Saturn SL1- wife's car
01 Saturn SC2- son's project
07 Saturn Ion Redline project
and 4 more Saturn "parts cars"
Note- the very act of listing all of these has made me realize I have some kind of problem.....

Visit http://www.spencerforhire.ca
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Re: fuel cell

Postby sportster96blk » Mon May 02, 2011 7:41 am

thanks. ill try that
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