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Old Mar 24, 2026 | 03:40 PM
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Hello all! Currently into a 1998 camaro RS to LS swap. Have fuel pump wiring questions but uncertain where to post. Specifically the fuel pump relay wires in connectors C100, C101 & C105 (i believe) any help/ direction would be greatly appreciated
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Old Mar 24, 2026 | 04:48 PM
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I'll have to dig my wiring schematics up, but I have full wiring diagrams for '98 LS powered cars, which should be somewhat of a help to you.
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Old Mar 24, 2026 | 05:41 PM
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That would be awesome! Im curious to see which green wire/ what connector powers the fuel pump, ill be tying it into a Aces PDM that the computer can switch, the green wire in connector C101 activated the pump but what came out of the fitting seamed low pressure (open AN fitting in engine bay ran into a container) thinking that may the the factory ECM "prime" wire and not the one i need to connect, to my PDM for switched start & run power.
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Old Mar 24, 2026 | 08:48 PM
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I'll be in my garage tomorrow, I'll try to remember to snap a pic of the pinout for C101
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Old Mar 25, 2026 | 09:50 AM
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Forgot to mention on that first reply that i had powered the relay via a jump box hooked to chassis ground and the post on the fuse box as i currently have a turbo sitting in the factory battery tray area and have not yet wired the new battery from the trunk to the engine bay
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Old Mar 25, 2026 | 05:00 PM
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Here's the pinout. The connector should have the letters A-K somewhere on the body, so you can be certain you're looking at the right thing. Remember, this is for a 1998. I think this connector has the same wiring scheme as other F-bodies, but I'm not 100% sure.

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Old Mar 28, 2026 | 03:45 PM
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Yeah thats the ones i had connected to external power. Im thinking i may only need a handful of the factory wires in those 3 connectors. The yellow and black, green and white then the two fan relay wires that are in the other connector, yellow and black tie together for ignition switch/ start enabled. Green and white to power distribution module as well as the green and blue for fan relays (these will all be controlled by the aftermarket ECM) and the wiring should be complete best i can tell. Anything im missing? I verified on car with the yellow/ black wire connected the key switch powers as it should to the starter solenoid. Windows, doors, tail, marker and reverse lights all work. Dash doesn't matter due to using the 8" touchscreen that came with my kit. Thanks again for all the info and help!
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Old Mar 28, 2026 | 04:37 PM
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I don't know for sure, as I just piggybacked my factory PCM with a Current Performance wiring harness and let them figure out what wire needed to go where, lol.
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Old Mar 29, 2026 | 07:59 AM
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Kinda same idea here, instead of letting the standalone and power distribution module run everything off a harness i would've had to build i figured let the factory relays, fuses etc. just be switched. Only problem is I have to figure out what hooks where lol, thanks again for all the help
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