after recent requests for 1 meg resistors to bypass the dett sensor members lose the facililty to protect against "dett" resulting in the £££££'s worth of damage to there motors...an ideal situation is to replace the original sensor but needs the upper and lower plenum removed so ive found this link that provides the know-how to relocate the sensor which imho is a lot better than a resister and still provides the "safe map";)

http://uk.youtube.com/watch?v=EZoOcHtv-LI&feature=related

Edited August 17, 200817 yr by znut

Mine is relocated there (by previous owner of my engine), but I bypassed it anyway !

 

Personally not a fan of relocation, but if you do it then you have to bear in mind -

 

1. The sensor is not going to be able to hear detonation in that location as well as it can in the stock location......if at all ..and could even falsely detect detonation when its not there.

2. Many aftermarket ECU's dont even have safety maps anyway

3. ECU cant put the car into safety boost if you have a Electronic boost controller

4. Even in the stock loctation it can only sense detonation below 3500rpm

5. Its still going to cost you £150 to buy the new knock sensor and loom.

Edited August 17, 200817 yr by Yowser

Recolate or relocate or both Brian?.. lol :p

Recolate or relocate or both Brian?.. lol :p

 

dont know what you mean Ian:tongue:

dont know what you mean Ian:tongue:

 

:tongue:

lol

the knock sensor of a 3.0 nissan silvia is the same as 300 zx if you buy from ebay.nz its dirt cheap then just leave old one where it is and relocate new one ....why bother removing it to much hasstle lol you can get one with long loom for less than 50 quid..and its as simple as unplug and bolt into new location..

im waiting for mine to be delivered so will post results soon...

check this linkhttp://cgi.ebay.co.uk/NISSAN-SILVIA-300ZX-180SX-SKYLINE-KNOCK-SENSOR_W0QQitemZ230314489413QQcmdZViewItemQQptZAU_Car_Parts_Accessories?hash=item230314489413&_trksid=p3286.m63.l1177

http://cgi.ebay.co.uk/NISSAN-SILVIA-300ZX-180SX-SKYLINE-KNOCK-SENSOR_W0QQitemZ230314489413QQcmdZViewItemQQptZAU_Car_Parts_Accessories?hash=item230314489413&_trksid=p3286.m63.l1177:dance:

http://cgi.ebay.co.uk/NISSAN-SILVIA-300ZX-180SX-SKYLINE-KNOCK-SENSOR_W0QQitemZ230314489413QQcmdZViewItemQQptZAU_Car_Parts_Accessories?hash=item230314489413&_trksid=p3286.m63.l1177:dance:

 

LOL...the hard part is after the postmans been;)

 

edit...thought you were going to original postion to re-place,my mistake

Edited December 17, 200817 yr by znut

the knock sensor of a 3.0 nissan silvia

 

No such engine was fitted to the Silvia.

 

I think you'll find that most knock sensors are the same througout a lot of the Nissan range.

it will still work though sorry it was in maxima i think one thing is though its work a try ..

i am waiting for it to arrive and will report results if im right it could help people sort shed loads of probs much cheaper..as tey want stupid money in uk for 300zx tt det sensor.

where if you search for maxima knock sensor item looks dentical but a 5th the price...

I've used a maxima knock sensor from ebay, cos me 25 quid with postage from the states! Works 100% perfect, up yours nissan courtesy, ya should wear a stripy T-shirt and a mask, thievin little so and so's... :-)

a couple observations about det sensors id like to share...

The 34 code you get is not actually a failed sensor. It is a corroded harness connection at the sensor. ive removed several and every one of them had a heavy crusty coat of corrosion at the connector. The solution ive come up with is to cut off the connector and after cleaning up the contact on the sensor, solder the harness to the sensor and seal the works with heat shrink tubing. There are two contacts on the sensor but only one is used. If you match up the connector to the sensor you will find it is the left one.

 

The det sensor can be removed from the engine block if the transmission is removed. i use a long ratcheting 12mm wrench and access the bolt to the right side of the EGR valve. Once the bolt becomes too loose to allow the wrench to ratchet properly, I use a long thin screwdriver to place downward pressure against the head of the bold to create friction at the threads. this allows the wrench to work again.

See my comments here - this can help also...

 

http://www.300zx.co.uk/forums/showpost.php?p=1322427

Andy are you saying that can be done with the engine in situ?

With engine in, water pipes, aic removed and wiring up out of the way, I can get my hand in there and get a spanner on the det sensor yes. I can certaintly reach the loom, plug/unplug it! Others have said I can't (even though they have not removed the EGR bracket) soooo - what can I say!

Would you mind if I came down to have a look, since we are virtualy neighbours?

Would you mind if I came down to have a look, since we are virtualy neighbours?

 

Maybe next year - getting ready to go to Malaysia/Singapore for xmas/new year.

Car is down at our Dorset place though currently!

Ok cool, let me know when you are around?