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Old 02-07-2020, 03:16 PM   #1
chero
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Join Date: Dec 2008
Location: Wichita, Kansas
Posts: 6
Wiring harness modify

Have 68 C10 doing LS swap. Have engine harness and ecm from 06 Tahoe. Salvage cut up harness. Was non flex harness. Bought replacement harness. From 05 1500 but turned out was flex fuel. Question is, can I use flex harness and ecm by replacing pigtails from old harness. Wire colors on both harnesses same. Assume I'd use flex ecm. Any ideas. Thanks for any help!
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Old 02-07-2020, 03:30 PM   #2
prodjay10
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Join Date: Jun 2016
Location: Phoenix AZ
Posts: 429
Re: Wiring harness modify

Yes. You gotta let the tuner know they are different injectors since the flex and non flex have different flow rates.

Or you can get the flex injectors.
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