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View Full Version : Knock Sensor connector, need help identifying it



stirlsilver
1st November 2017, 09:01 PM
Hi Everyone,
I need some help to try and track down where to buy a connector for the Bosch Knock Sensor.

Anyone have any ideas on which connector is the one that suits? Even if someone knows the brand of the connector, that would help as a starting point.

https://www.aulro.com/afvb/images/imported/2017/11/11.jpg
https://www.aulro.com/afvb/images/imported/2017/11/12.jpg

Thanks,
Stirling

stirlsilver
4th November 2017, 07:54 AM
I think I might have worked it out, the connector is a Bosch 2 pin female.
Bosch 2 Pin Late Female (https://www.efihardware.com/products/2171/Bosch-2-Pin-Late-Female)

Now I need to work out how to make the step down studs to mount them on the block!

101RRS
4th November 2017, 03:27 PM
I deleted this information - TR Spares have the posts - $13.90 for two delivered. May be able to send the connectors as well.

sierrafery
5th November 2017, 10:00 PM
I think I might have worked it out, the connector is a Bosch 2 pin female.
Bosch 2 Pin Late Female (https://www.efihardware.com/products/2171/Bosch-2-Pin-Late-Female)


Are you sure? the one in the link is different than the one in your pic that's sure

stirlsilver
6th November 2017, 01:25 PM
Are you sure? the one in the link is different than the one in your pic that's sure

I'm 80% sure. I looked at the photos closely with the sensor in my hand. It definitely isn't the Bosch EV1 (below). The connector is set quite deep into the sensor housing.
https://www.aulro.com/afvb/images/imported/2017/11/123.jpg

101RRS
6th November 2017, 01:47 PM
Wrong information

101RRS
6th November 2017, 02:07 PM
Both of those plugs are not correct though the first is closest put does not project out far enough.

The plug in connector goes completely inside the housing of the knock sensor.

See these pics I just took of the plug that goes into the knock sensor - my knock sensors are the same as in the original post.

https://www.aulro.com/afvb/images/imported/2017/11/126.jpg (https://flic.kr/p/Z8brEd)20171106_145032[1] (https://flic.kr/p/Z8brEd) by Garry Collins (https://www.flickr.com/photos/150171671@N02/), on Flickr

https://www.aulro.com/afvb/images/imported/2017/11/127.jpg (https://flic.kr/p/Z8bwuJ)20171106_145213[1] (https://flic.kr/p/Z8bwuJ) by Garry Collins (https://www.flickr.com/photos/150171671@N02/), on Flickr

https://www.aulro.com/afvb/images/imported/2017/11/128.jpg (https://flic.kr/p/21abUMh)20171106_145837[1] (https://flic.kr/p/21abUMh) by Garry Collins (https://www.flickr.com/photos/150171671@N02/), on Flickr

You can see with the connector it is a bit different to the first connector but a put different and completely different to the second NZ one which does not go inside the knock sensor.

The last pic is the knock sensor with the plug inside it - completely enclosed by the knock sensor.

Garry

stirlsilver
6th November 2017, 04:47 PM
Bugger!
That means it is this one...
Bosch Alternator Connector LS Late (https://www.efihardware.com/products/2642/Bosch-Alternator-Connector-LS-Late)

The others are already on the way to me, so I guess I'll need to send them back and changed them over. Thanks for the heads up!

sierrafery
6th November 2017, 08:25 PM
Indoubt that the alternator plug will fit, i cropped and edited the images, the plug which is good should have 3 guiding tracks at the top and3 at the bottom (as those marked with blue) which are only 2 on the aleternator connector to fit into those channels(which i marked with red only at the bottom) on your first picture which are also 3 at the top and 3 at the bottom if you see what i mean

101RRS
6th November 2017, 11:06 PM
This is what the actual plug looks like from the end

https://www.aulro.com/afvb/images/imported/2017/11/136.jpg (https://flic.kr/p/21aUkX5)20171106_235253 (https://flic.kr/p/21aUkX5) by Garry Collins (https://www.flickr.com/photos/150171671@N02/), on Flickr

Stirling if you intend to use the knock sensor just as a setting up tool then just solder two wires to the contacts in the knock sensor - the right contact is the signal and the left contact is the black shielded wire.

These are the same longyue 10set GM LS Series Engines 2 Pin Connector fit Bosch Alternators | Longyue autoparts factory | Pinterest | Engine (https://www.pinterest.com.au/pin/222576406562123270) (top left corner) which specify a GM LS Alternator plug so should fit,

Garry

101RRS
7th November 2017, 12:01 AM
Indoubt that the alternator plug will fit, i cropped and edited the images, the plug which is good should have 3 guiding tracks at the top and3 at the bottom (as those marked with blue) which are only 2 on the aleternator connector to fit into those channels(which i marked with red only at the bottom) on your first picture which are also 3 at the top and 3 at the bottom if you see what i mean

The pics do not really show up all that well - on the the bottom, guiding tracks are on the outside and fit into slots in the sensor - where your right red arrow is and a bit to the left of your left red arrow. There is nothing in between to provide interference where your middle red arrow is. The top two guides go into slots in the sensor.

All hard to visualise in the pics but obvious when you have both parts in front of you. I think that the LS Alternator plug should fit as it certainly seems to have the right guides in the right positions but there are some minor differences elsewhere that should not matter.

Garry

stirlsilver
9th November 2017, 10:56 PM
Ok, just to close the loop on this one. The connectors I had ordered (Bosch 2 Pin Late Female) actually ended up fitting the knock sensors [bigsmile1] Happy days. Looks like a couple of different varieties fit then?

Thanks for your input Garry.