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Conversions & Swaps LSX Engines in Non-LSX Vehicles
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Old 04-03-2018, 11:40 AM
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Default Hello need help
I am looking for information on how to use a stock computer and wiring harness out of a late 90 truck or car to but an engine and transmission in my 78 c10 truck
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Old 04-03-2018, 12:51 PM
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http://www.lt1swap.com/wiringharness.htm
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Old 06-22-2018, 11:01 AM
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Default 5.3 swap question
Do you have to reprogram the computer
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Old 06-22-2018, 12:10 PM
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Tens of thousands of pages of info out there. Start searching and reading.
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Old 06-22-2018, 12:15 PM
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Originally Posted by Hoss65
Do you have to reprogram the computer
Yes, its a good idea. Plus VATS needs to be removed or else your car wont start.
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Old 07-03-2019, 08:49 AM
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Originally Posted by Smitty454
Yes, its a good idea. Plus VATS needs to be removed or else your car wont start.
Thank you for your help can you tell me if I need to keep the oil pressure sensor at the back of the engine or can I use a regular gauge I am reworking the wiring harness to do a stand alone
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Old 07-03-2019, 10:11 AM
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The oil pressure sender does not hook with the ECM. Use what you like.
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Old 07-03-2019, 10:13 AM
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Ok thank you I had heard that it might control the fuel pump but that didn't sound right to me
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Old 07-03-2019, 01:09 PM
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Originally Posted by Hoss65
Thank you for your help can you tell me if I need to keep the oil pressure sensor at the back of the engine or can I use a regular gauge I am reworking the wiring harness to do a stand alone
Welcome back.

I use a regular old school mechanical autometer oil pressure gauge on my LS,
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