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01-28-2011, 08:33 PM
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CC Member
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Join Date: Sep 2002
Cobra Make, Engine: SPF#0760
Posts: 3,409
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Not Ranked
Correct...Actually it's a step-down to 10V. So the gauge does not react to voltage swings when fans and headlights go on and off...
__________________
Wiring Diagrams: SPF MKII, MKIII, GT40, CSX7000, CSX8000, Corvette Grand Sport, and Shelby Sebring, Bondurant & Cinema Tribute Cars.
Owner’s Manuals: SPF MKII, CSX7000, CSX8000, Sebring, Bondurant, Cinema Tribute Cars $ GT40’s..
Large, easy to read and trace schematics with part numbers, wire colors, wire gauge, fuses, and electrical upgrade information. Trouble-shooting and replacement part numbers for those roadside repair adventures.
SPFWiringDiagrams@Comcast.net
Last edited by Blas; 01-28-2011 at 09:06 PM..
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01-29-2011, 09:47 PM
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CC Member
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Join Date: Jun 2010
Location: Battle Ground,
WA
Cobra Make, Engine: Superformance, Roush 427R
Posts: 25
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Not Ranked
Fred,
Thanks for letting me know about the voltage stabilizer for the fuel gauge and the part number.
Blas,
I sent and e-mail directly to you regarding the wiring diagram. Did you receive it?
Gil
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01-30-2011, 08:05 AM
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CC Member
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Join Date: Sep 2002
Cobra Make, Engine: SPF#0760
Posts: 3,409
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Not Ranked
Yes, I sent information about the wiring diagram to you via email. I resent you the information again today. Apparently the first email didn't make it through properly. Hopefully this email will go thru. Thanks also for the inquiry about my Superformance Wiring Diagrams. I’m always happy to help fellow owners with questions too. FYI, there is an information brochure in the “For Sale” section here on Club Cobra and there are screen shots of the diagrams in my gallery of all three versions of the Wiring diagrams…Great look car…
__________________
Wiring Diagrams: SPF MKII, MKIII, GT40, CSX7000, CSX8000, Corvette Grand Sport, and Shelby Sebring, Bondurant & Cinema Tribute Cars.
Owner’s Manuals: SPF MKII, CSX7000, CSX8000, Sebring, Bondurant, Cinema Tribute Cars $ GT40’s..
Large, easy to read and trace schematics with part numbers, wire colors, wire gauge, fuses, and electrical upgrade information. Trouble-shooting and replacement part numbers for those roadside repair adventures.
SPFWiringDiagrams@Comcast.net
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01-30-2011, 04:23 PM
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CC Member
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Join Date: Jun 2010
Location: Battle Ground,
WA
Cobra Make, Engine: Superformance, Roush 427R
Posts: 25
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Not Ranked
Blas,
I checked the fuel sending unit wires. The wires are in excellent condition, no shorts at the terminal posts, and no loose connections where connected to the sending unit. Fred (SP0884) mentioned his problem was the voltage stabilizer. Should I replace that next? Is there a simple way to send 10 volts through the fuel gauge first to see if it's working? I haven't traced the wires from the fuel sending unit all the way to the fuel gauge. Are there anymore terminal connections along the way I should check? Is there an in-line fuse in the fuel gauge circuit that may of blown?
Gil. Battle Ground, WA
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01-30-2011, 04:46 PM
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CC Member
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Join Date: Sep 2002
Cobra Make, Engine: SPF#0760
Posts: 3,409
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Not Ranked
Hmmmmm....
Check to see if you have power at the tank sender....Then check to see if you have power at the step-down unit on the drop down fuse panel. (upper left hand corner) Power to step down is a green wire powered thru fuse #10
(The 2nd fuse down on right side fuse bank) #10 also powers the Tach...So if the Tach works, check power to and thru the step down. Keep me posted on what you find...
__________________
Wiring Diagrams: SPF MKII, MKIII, GT40, CSX7000, CSX8000, Corvette Grand Sport, and Shelby Sebring, Bondurant & Cinema Tribute Cars.
Owner’s Manuals: SPF MKII, CSX7000, CSX8000, Sebring, Bondurant, Cinema Tribute Cars $ GT40’s..
Large, easy to read and trace schematics with part numbers, wire colors, wire gauge, fuses, and electrical upgrade information. Trouble-shooting and replacement part numbers for those roadside repair adventures.
SPFWiringDiagrams@Comcast.net
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01-30-2011, 08:18 PM
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CC Member
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Join Date: Jun 2010
Location: Battle Ground,
WA
Cobra Make, Engine: Superformance, Roush 427R
Posts: 25
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Not Ranked
Blas,
Thanks for sending the image (photo) for the voltage stabilizer. The photo helped me locate the voltage stabilizer in the Fuse Box Tray. I did not see it at first glance since it's under a tie-wrapped bundle of wires. With the image I knew what to look for. It's smaller than I thought it would be. I cut the tie-wrap, checked the connections, then turned the key to see if the fuel gauge now worked. Still not working. Per our conversation, I'll check for voltage at the source and work my way around the circuit using your recommended procedure. I loaned my volt meter to a friend, so I'll check voltages tomorrow evening. Thanks for the advice.
Gil, Battle Ground, WA
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