I broke this taking it apart. Then cut it off and took to parts store to no avail. It was super coroded and stuck together. When I search the # on it (491j) I cant find anything.
Also cant find it on any of the schematics thus far. Its 2 wires coming out from the injector harness that terminate in
whatever this black connector is. It says Nissan 0.47 symbol for micro and letter f on one the top side of connector opposite the plug.
It was taped to the harness next to the connector for the knock sensor. two terminal socket one horizontal and one vertical.
Sorry my phone camera is cracked.

Reads 491j


piece on right was stuck inside coroded together.

Red and black wire sticking up comes out of the harness for injectors. Was taped on Next to knock sensor connector.

Reads Nissan 0.47 with micro symbol and an f next to it.

 

Solved It's a Condensor ignition coil. A Capacitor that protects the ignition points from voltage spikes.
Wasn't an ohm symbol it was Micro Faradays.
https://www.nissanpartsdeal.com/part...351-89901.html

 

Bingo!

And next time, try not to take pictures underwater.

 

Thanks so much Wizard! That service manual is gold.
Im doing struts for the first time tomorrow
super helpful!
More questions about this part!
Now that I replaced the condensor knock sensor and maf
im hearing a bit more ticking from the engine than I remember. First thought
was lifter noise but after reading about the voltage spikes that dont get absorbed by a broken condensor
burning ignition points im wondering if it could have burnt the injectors. Also
wondering if anything else may have been damaged from overvoltage. Ive noticed I keep burning out phone chargers
in the ciggarette lighter could the excess voltage feed back into other parts of the harness? Complete novice here sorry if
this is a dumb question! Also let me know if im supposed to start a new thread for these ignition condensor coil questions?...