Knock sensor wires

Discuss topics related to the CA18DE and CA18DET series engines.
Ron240sx
Posts: 112
Joined: Mon Apr 26, 2010 1:55 pm
Car: 90 240sx ca18det
89 300zx vg30e

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I got this ca18de harness from dee a couple years back and about to get this running soon. Is the connector with the white wire and black wire with two prongs it for the knock sensor? I can't seem to upload pictures but on the harness it's right by where it goes to the plugs by the battery and the CAS sensor. Am I on the right track?


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float_6969
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Car: CA18DET swapped 1995 Nissan 240sx (too many mods to list)
2015 SV Leaf w/QC & Bose (daily)
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Gonna have to have some pics man.

Ron240sx
Posts: 112
Joined: Mon Apr 26, 2010 1:55 pm
Car: 90 240sx ca18det
89 300zx vg30e

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well honestly the white wire is in the correct pin out "number 23". I just thought it was said to be shielded wire to the ecu and it's just plain old 18 gauge wire. Regardless the actual plug isn't present for the knock sensor. But it is at the ecu connector. And id love to show some of my awesome pictures finally . But I can't figure out how to load them from my phone onto here.

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sjbsuperman1425
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Joined: Tue Nov 06, 2007 2:24 pm
Car: 1989 Nissan 240sx
CA18DET
Location: Bay City, MI
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To get pictures onto the NICO forum you need the image code. What I do is upload the pictures to my Photobucket account then grab the image code from there and copy and paste. The image code is in html code.

As for the knock sensor, look in the stickies at the FSM/Wiring info section and there is a pinout page that shows what pin has which wire. Find the one for the knock sensor and run a wire from there to the knock sensor. For the connector, its a single wire yellowish looking plug (very different from the rest of them). You can buy them from Wiring Specialties for around $30 for a pigtail.


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