Knock sensor connection location question

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ZiprHead
Posts: 110
Joined: Mon Jan 02, 2017 11:30 am
Car: 1999 Infiniti Q45 base
Location: Saginaw, MI, USA

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About to change the knock sensors and I want to make sure the parts I got are correct. I found two connectors just in front of the intake plenum on the right side of the engine. The connectors are very similar but not the same. Wondering if I got the wrong parts or if I'm not finding the right connectors. Any help will be very much appreciated.

The car is a 99.


3Q Jay
Posts: 2545
Joined: Sat May 08, 2004 6:23 pm
Car: 94 Q45a
95 Q45a (sold)
97 Q45t (sold)
01 B15 Sentra (Daughter's)
Also Mine...
2010 A6 Avant
1977 F-150 (460!)
Location: Florida Coast

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pictures?
this is the correct factory part number for a '97. It's possible the '99 might be different?
HARNESS, ENG SUB INF#24079-6P020

MowgliCSM
Posts: 59
Joined: Sat Jan 07, 2017 11:56 am
Car: 99 Q45t, 07 S550, 89 Mitsu Mirage Turbo.
Location: South Carolina

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Knock sensors would be bolted down under the intake plenum. Replacing the harness was a good idea on the G50's, but the Y33's never really had an issue with them degrading. Also make sure you have genuine Nissan KS's. Cheap eBay China ones will more than likely cause you issues down the road and it's not worth the small amount you save.

3Q Jay
Posts: 2545
Joined: Sat May 08, 2004 6:23 pm
Car: 94 Q45a
95 Q45a (sold)
97 Q45t (sold)
01 B15 Sentra (Daughter's)
Also Mine...
2010 A6 Avant
1977 F-150 (460!)
Location: Florida Coast

Post

MowgliCSM wrote:
Thu Oct 24, 2019 2:04 pm
Also make sure you have genuine Nissan KS's. Cheap eBay China ones will more than likely cause you issues down the road and it's not worth the small amount you save.
+1.
Note that Genuine Nissan KS (22060-30P00) will have JECS UNISIA stamped on them. Beware that there are KS out there that appear to have a Nissan parts tag on them, but are counterfeit (hint: scan the bar code and see the p/n does not match).

Ludeaem
Posts: 217
Joined: Mon Mar 10, 2008 8:46 am
Car: 2000 Infiniti Q45 AE
Location: Greenville, SC

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I am pretty sure OEM is Hitachi. I bought them on rock auto for $40 a piece


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