How to wire a 4th gen F-body fuel tank into a 3rd gen F-body
12-14-2023, 10:44 PM
#101
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Car: '89 Firebird
Engine: 7.0L
Transmission: T56
Re: How to wire a 4th gen F-body fuel tank into a 3rd gen F-body
What I mean is how/where did the fuel level sender wire exit the interior to go to fuel tank?
Do you have a picture?
Do you have a picture?
12-15-2023, 07:02 AM
#102
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Re: How to wire a 4th gen F-body fuel tank into a 3rd gen F-body
The two wires from the tank went back to the left rear corner behind the bumper and were part of the taillight harness. There is a bulkhead connector at the back of the left quarter panel that plugs into the chassis harness, over the wheelwell, and runs along the driver's side rocker. You are probably familiar with most of this, but I included it for those that are new to these cars. OEM wiring was sketchy at best before all of the modern electronics were introduced.
12-15-2023, 01:25 PM
#103
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Car: Resto-Mod 1987 IROC-Z Clone
Engine: Alky fed L92 Vortec Twin-Turbo 6.8L
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Re: How to wire a 4th gen F-body fuel tank into a 3rd gen F-body
None of this sounds correct/ stock.
The C313 was in use in 84 for certain.
The C313 was in use in 84 for certain.
12-18-2023, 12:41 PM
#104
Re: How to wire a 4th gen F-body fuel tank into a 3rd gen F-body
Looks like even my 85 canadian lg4 (no computer or in tank pump) still used the c313, but with one terminal plugged.
Though i wonder where the brown wire leads to in the interior side.....
Last edited by Manic Z; 12-18-2023 at 01:23 PM.
12-18-2023, 02:37 PM
#105
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Car: '89 Firebird
Engine: 7.0L
Transmission: T56
Re: How to wire a 4th gen F-body fuel tank into a 3rd gen F-body
That brown wire in an EFI car normally would come from the C100 connector. Perhaps the wire is laid in the interior of your car and terminated at both ends (C100 and C313 connectors) but goes nowhere on the outside of the car (engine bay or fuel tank)?
I have unused wires laid in interior for options my car does not have. They just dead end at an unused plug somewhere.
I have unused wires laid in interior for options my car does not have. They just dead end at an unused plug somewhere.
Last edited by QwkTrip; 12-18-2023 at 02:42 PM.
01-21-2024, 08:47 PM
#106
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Re: How to wire a 4th gen F-body fuel tank into a 3rd gen F-body
This was taken in 2004 when I started working on the rear suspension.
Notice that there is no C313 on the rear bulkhead of my 84 Z28. This car had the feedback carburetor and mechanical fuel pump on the block, therefore there was no electric pump in the fuel tank. I added the C3XX from a 2000 Camaro SS that the fuel tank came from because it also had the connector for the ABS integrated.
01-21-2024, 09:29 PM
#107
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Car: '89 Firebird
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Re: How to wire a 4th gen F-body fuel tank into a 3rd gen F-body
Although I used the parallel splice instead of the butt splice so that all the wires are in direct contact.
Molex 8 AWG VersaKrimp parallel splice, crimped with a HX-50B hex crimper (also known as Grote Cub, and Toolaid 18840)
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