Post by
Towerdog »
https://forums.nicoclub.com/towerdog-u188912.html
Wed Aug 10, 2011 11:34 am
It is in that wire housing, however it is further back. Follow that and it will continue after splitting off to the last injector if you unwrap the back covering its a single white wire.
I just replaced the knock sensor and it was not the most fun day in my life. You should drain some of the coolant from the block, as this made it not so messy. After removing all the hoses and connectors from the top intake, I just set it aside to the left. Note: this part sucks! There two hoses on the back with c-clips that are very hard to get to. there are also two electrical connections on the back right on the underside that need to be unplugged. I just tipped the front up to unhook these. Once this part is over with, have a beer and pat yourself on the back. Next take the fuel rail off with the four hex bolts and I also set that to the left without having to open the system, this was nice! there are plastic spacers under the rails, and rubber rings that the injectors sit into so don't loose them. Lastly to take off the lower intake there are 6, yes 6 bolts holding it onto the block. 5 hex on top that are easy enough to get off, remember to torque them back to spec. as its in inch lbs. The last one was sneaky and it sits in the front of the engine horizontal. I took off the front top serpentine belt tension bracket and all to access this Phillips head bolt. After this your in the clear, you can take the hoses off the back part of the lower intake pull it up over the bolt studs and see the knock sensor. I bought my sensor for 27 bucks online inc. shipping and with new gaskets lower and upper all for around 50 bucks its a lot more work than money. It runs great with no check engine light now my back is hurting.