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LS1 harness on a LQ4?

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Old Dec 15, 2020 | 02:25 AM
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Default LS1 harness on a LQ4?

Sup guys! I have a LQ4 swap in my 240sx. A friend of my is giving me a harness from his LS1 240sx. His harness has the green and blue connectors for the ECU. He is giving me the ECU as well. I know my ecu for the LQ4 is blue and red connectors. Am I able to use the harness with my LQ4 ECU or would i need to use LS1 sensors and get my friends LS1 green/blue ECU reprogrammed to LQ4 specs from Brenden at LT1swap? Both are Gen 3 engines. Please any information is greatly appreciated. This is my first LS motor and swap. Always wanted to an LS and finally got this great deal. Been youtubing and researching a lot.
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Old Dec 15, 2020 | 11:28 PM
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The harness, the sensors and the PCM need to match. That’s all that matters. I’m actually doing something very similar but with an LQ9. Since I already have a blue/green setup, Brendan is throwing the LQ9 tables on a blue/green PCM for me even though the LQ9 is technically a red/blue engine.
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