Temperature Sensor Replacement

[FastWoman]

Hi all,

I could use your advice. I just measured my temperature sensor resistance, and it's rather high. Moreover someone apparently "fixed" a fuel/air ratio problem by wiring a resistor in series with the sensor, so that the computer will only see the engine warming up to maybe 120F. Anyway, I presume I should straighten out the wiring and replace the sensor. Fuel/air ratio adjustments can be made at the AFM later.

So I'm wondering first how this thing can be removed. Is it possible to slip a deep socket over it, or must it be turned with an open-end wrench? If the latter, do I remove the distributor to get enough working room? Or do I have to remove the thermostat housing from the side of the head first?

Next, I'm wondering whether the replacement temp sensors available at my local auto parts store are going to have the same resistances as an OEM Datsun sensor. How can I tell before buying? Or is this a part that should ONLY be genuine Nissan?

Thanks for any words of wisdom!

Peace,

Sarah

[FastWoman]

(Bump! )

Maybe I can pull the thing with a crow's foot wrench? How hard would the thing be to turn?

The reason I ask about a deep socket is that I would have to buy one. I don't have one that large, so I can't do a test-fit.

Whatever I do will require either the purchase of tools I don't have or a bit of engine disassembly, so words of wisdom from people who have replaced this part would be greatly appreciated!

Thanks, guys!

Peace,

Sarah