If its the 12mm bolt. Use a 12mm 6pt 1/4 drive socket with a small extension. If you can get wrench on it. Preferably a long reach wrench. You can wear some mechanic gloves ball up fist, and give it a few thumps. It should brake loose.

https://www.clublexus.com/forums/is-...ug-change.html

 

Thanks Mike,

Will give it a shot. I used a 12mm wrench but guessing it wasn't long enough (maybe 6 inches).

 

If it's your first time removing the intake manifold. You want to get all 3 brace brackets bolts hand tightened in first before you start securing everything back up. If not they may not align correctly.

Throttle body side bolt, rear fire wall side, and last one on the driver side valve cover.

 

Successfully changed the sensor. Can't thank you guys enough. Pretty straightforward! Also appreciate the advice to open the gas cap, as the car didn't start at first due to pressure. All good now!