# SOHC to DOHC

**URL:** <https://forums.speedlife.net/t/sohc-to-dohc/156085>\
**Category:** SON240sx Automotive\
**Created:** [June 5, 2010, 3:10pm UTC](https://forums.speedlife.net/t/sohc-to-dohc/156085 "2010-06-05T15:10:35Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![BoOsT-HuNgRy](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/boost-hungry/32/5721_2.png) [@BoOsT-HuNgRy](https://forums.speedlife.net/u/BoOsT-HuNgRy)\
**Post date:** [June 5, 2010, 3:10pm UTC](https://forums.speedlife.net/t/sohc-to-dohc/156085/1 "2010-06-05T15:10:35Z")

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I am looking for a website of links to a turtorial on how to make my 89 coupe with sohc to a dohc with power steering. can anyone lend a hand. i tried the search bar but didnt come up with a whole lot thanks.

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**Author:** ![simplemind7](https://avatars.discourse-cdn.com/v4/letter/s/0ea827/32.png) [@simplemind7](https://forums.speedlife.net/u/simplemind7)\
**Post date:** [June 5, 2010, 3:47pm UTC](https://forums.speedlife.net/t/sohc-to-dohc/156085/2 "2010-06-05T15:47:12Z")

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It’s easy, I’ve done it a bunch of times. What do you need to know?

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**Author:** ![jugahdor](https://avatars.discourse-cdn.com/v4/letter/j/67e7ee/32.png) [@jugahdor](https://forums.speedlife.net/u/jugahdor)\
**Post date:** [June 5, 2010, 4:53pm UTC](https://forums.speedlife.net/t/sohc-to-dohc/156085/3 "2010-06-05T16:53:22Z")

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yo im doing this too, so would a kade wire that connects to the ka-e pc work??

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**Author:** ![BoOsT-HuNgRy](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/boost-hungry/32/5721_2.png) [@BoOsT-HuNgRy](https://forums.speedlife.net/u/BoOsT-HuNgRy)\
**Post date:** [June 6, 2010, 5:26am UTC](https://forums.speedlife.net/t/sohc-to-dohc/156085/4 "2010-06-06T05:26:54Z")

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i need to know how to make the wiring harness the rest i think shouldnt be to hard.

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**Author:** ![simplemind7](https://avatars.discourse-cdn.com/v4/letter/s/0ea827/32.png) [@simplemind7](https://forums.speedlife.net/u/simplemind7)\
**Post date:** [June 6, 2010, 8:44pm UTC](https://forums.speedlife.net/t/sohc-to-dohc/156085/5 "2010-06-06T20:44:38Z")

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You just use the DOHC engine harness, everything plugs in and works except the plug above the ECU by the glove box. You have to put the one from the SOHC harness on, wire colours are the same so just connect the same ones together.

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**Author:** ![BoOsT-HuNgRy](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/boost-hungry/32/5721_2.png) [@BoOsT-HuNgRy](https://forums.speedlife.net/u/BoOsT-HuNgRy)\
**Post date:** [June 7, 2010, 4:09am UTC](https://forums.speedlife.net/t/sohc-to-dohc/156085/6 "2010-06-07T04:09:55Z")

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sweet thanks

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**Author:** ![BoOsT-HuNgRy](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/boost-hungry/32/5721_2.png) [@BoOsT-HuNgRy](https://forums.speedlife.net/u/BoOsT-HuNgRy)\
**Post date:** [June 17, 2010, 7:28am UTC](https://forums.speedlife.net/t/sohc-to-dohc/156085/7 "2010-06-17T07:28:30Z")

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i was left with 2 green wires un connected on the plug side and about 5-6 different color wires on the ecu end what do i need to do? ones purple 2 bluish 1 light aqua a grey one and ithink a red one with yellow line

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**Author:** ![240sx](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/240sx/32/5592_2.png) [@240sx](https://forums.speedlife.net/u/240sx)\
**Post date:** [June 19, 2010, 1:02pm UTC](https://forums.speedlife.net/t/sohc-to-dohc/156085/8 "2010-06-19T13:02:43Z")

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i know you will have left over wires from the swap. there for diagnostics i believe