LTX and LSX Putting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.

3rd gen fuel pump wire

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Old Jun 17, 2010 | 01:46 PM
  #1  
kukerdan's Avatar
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3rd gen fuel pump wire

Hey guys, can anyone tell me which wire comes from the fuel pump thru the firewall of my 88 camaro?

My lt1 starts n runs on ether, but we cant figure out how to hook up the fuel pump, and really dont want to drop the tank to trace the wire.

can anyone help out?

thanks!
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Old Jun 17, 2010 | 03:29 PM
  #2  
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From: Kingsport Tenn
Car: 1992 camaro
Engine: LT1
Transmission: 4L60E
Axle/Gears: 3:73
Re: 3rd gen fuel pump wire

It might be gray on the relay what colors are all the wires?
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Old Jun 17, 2010 | 04:46 PM
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Car: 91 Trans Am
Re: 3rd gen fuel pump wire

C100 G4 Tan/Wht

Fuel wires didnt turn GRY until 90. To make things more confusing the alt/fan relay 12v fuse feed is also Tan/Wht until 90 when it went to the more common BRN
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Old Jun 17, 2010 | 04:56 PM
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From: Bloomington, MN
Car: 89 Camaro
Engine: 408ci sb, 195AFRs, 750 Mighty Demon
Transmission: JW Full Manual Valve Body TH350
Re: 3rd gen fuel pump wire

The main wire you are looking for should be tan and white ( I believe its tan with a white stripe). Also, if I remembor correctly there is a fuel pump relay on the drivers side of the engine bay, close to the firewall.
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Old Jun 17, 2010 | 06:39 PM
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Re: 3rd gen fuel pump wire

You simply cant guess what "side of the engine bay" its on. It moves quite a bit between the years from the C100 to C207. Thats opposite sides of the car!
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Old Jun 18, 2010 | 08:36 AM
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Re: 3rd gen fuel pump wire

hey pocket, could you elaborate on what c100 is?

thanks
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Old Jun 18, 2010 | 08:52 AM
  #7  
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From: Kingston, Tn
Car: 1987 GTA
Engine: LT1
Transmission: T56
Axle/Gears: 9 bolt 3.70 posi
Re: 3rd gen fuel pump wire

C100 is the bulkhead connector. Was the car a V6 to start with? if it was, it could be like my MPFI 'bird was and it came through the connector on the passenger side dash harness, went all the way through to the driver side where it then ran to the back of the car. It would also be a tan wire.
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