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Discussion Starter · #1 ·
I went by the skillsilla wiring guide to start my rb20 up using my KA lower harness. I was told that I have to wire in the knock sensor harness from the rb20 lower harness and tap it into the ECU. I did not do this, but the car still runs.
Is it neccessary to do this? what does the knock sensor plug look like?
 

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I dunno about the 20, but in the 25 the knock sensors are on the block and have a connector that connects up need the front of the engine on the passenger side.
 

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the knock sensors are on the efi harness, no lower harness bit involved.
 
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