240sx knock sensor and oil press sensor replacment

So since my turbo dreams seem to keep me up later and later at night i got inspired to further the progress on my 240sx turbo project. I installed my new knock sensor and oil pressure sending unit. The knock sensor was making a check engine code fault and when your ecu is in a safety mode (when the check engine light is on) you cant tune the car very well. Realizing this i went to fix my problem here is a quick write up.

1. Disconnect the battery
2. Remove intake tube from manifold
3. Remove upper radiator hose from the engine
4. Remove the smaller water hose that runs in the middle of the upper and lower manifold halves and heads strait to the back of the manifold. If you cant get your hands in their then save your self the time and just remove the intake manifold.
5. If you can fit your hand in between the upper and lower manifold halves then you can probably get the knock sensor out and in without removing the manifold.(getting it back in is the trick)
6. Remember if you remove a fuel line it will be pressurized. I removed the one in between the middle upper manifold runners.
7. Have a friend hold the bolt on the sensor once it gets close to the mounting hole with a magnet, squeeze your hand into the manifold and thread the bolt so you can get a ratchet on it to tighten it up.
8. Remember a knock sensor must be tightened to spec 15-20 ft lbs
9. Then just put it all back together.

The oil pressure sensor was to get my freaking car to stop puking oil and so far it seems successful. The installation here is self explanatory. The only thing is since i was already leaking oil i added plumbers tape to the threads so it would create an extra Tight seal.

So thats it for now.