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Driver side fuel pump wire colors

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Old May 20, 2025 | 10:18 AM
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Default Driver side fuel pump wire colors

Hi everyone,

Hooking this up to a Haltech ECU. I need a little help identifying some wire colors on driver side fuel pump from a C6.
I know one of them should be for the fuel level and one powers the pumps to injectors. Not sure which one is which though.

White (ish) - ?
Black - ground?
Dark Grey (thicker gauge than black) - 12V maybe?
Blue - fuel level?

Thanks


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Old May 22, 2025 | 12:55 PM
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From: Armstrong BC
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Originally Posted by gtm534
Hi everyone,

Hooking this up to a Haltech ECU. I need a little help identifying some wire colors on driver side fuel pump from a C6.
I know one of them should be for the fuel level and one powers the pumps to injectors. Not sure which one is which though.

White (ish) - ?
Black - ground?
Dark Grey (thicker gauge than black) - 12V maybe?
Blue - fuel level?

Thanks


Reply
Old May 22, 2025 | 01:01 PM
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Originally Posted by 91 Z28
I also found something similar. This further clarifies it. Thanks a lot.
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