Knock sensor resistance reading please?

[RIboater2]

I'm having issues with a knock sensor code, P0237 on bank 1. Before I tear apart the top of the engine to replace it, I'd like to test the resistance. I can take a reading from bank 2 but would like a third reading from somebody else to also compare if somebody could help me out with that. I don't know if the V12 and V8 knock sensors would have the same reading.
Some years ago on my wife's Nissan, I was getting a persistent knock sensor code. The sensor was known to be in a spot you nearly had to yank the engine to get at it. The temporary solution (that was about 10 years lol) was to simply unplug it and put in a resistor so the computer would think the knock sensor was there and fully functioning. I might try that again. As a "temporary" solution of course...

Edit: so I just went to take a reading from bank 2 but can't seem to get one. No matter what range i set it to, it stays at 1. Maybe because it's installed in the car and grounded?

[psjr]

More common for the wiring to get damaged than the sensors themselves to fail.
Perhaps the open circuit you're seeing is a result of that.

[acspecialists]

I'm not sure what type of reading you are taking but mine was crusty wire insulation at the plug.

[Timm]

The knock sensors are piezo (ceramic) transducers - and you do not get a resistance reading from them - and unfortunately using a resistor won't fool the ECU either!

[acspecialists]

If I'm not mistaken the sensor would generate a voltage when vibrating at the correct frequency. I think I've heard of people tapping on the sensor and getting a voltage reading. Probably a job for a scope much like the cam and crank sensors. You would still have to pull the intake. The next time I pull my intake I will change mine. Until then I can live with the CEL light on.

[Timm]

By the point you remove all the parts to actually tap on the sensor you might as well change it!

[RIboater2]

If a resistor worked to fool the ecu of a Nissan, why wouldn't it work for a BMW? I'm thinking a .5V 1 Ohm would do the trick.

[acspecialists]

You can't fool a BMW. The car even knows when you don't spend $400 on a MAF from BMW

[RIboater2]

continuing along.... to be sure replacing the sensors would work, what would happen if I just plugged in a new sensor without actually bolting it to the engine block? The code I'm getting is for low signal which would seem to be a wiring issue. I"m not actually getting a knock code. I'm thinking being bolted into the block also grounds it and may be necessary to complete the circuit. But maybe not?.....

[Timm]

It is completely encapsulated and doesn't ground out when bolted down. I would expect an error code if not bolted down - but who knows!