cplyons

On my 2000 RX300 I have an error code that traces back to fuel/02 sensor (bank 1 sensor 2, the one that requires you to remove the driver's seat). I took a look and discovered that there are two studs with no nuts holding the sensor, loosely, to the car. Needless to say I'm pumped at the thought of a couple of nuts maybe fixing the error.

My question: What size nut is original there? The studs do not look like the pictures posted here, but my attempts to try a number of sizes and pitches haven't worked. I think it's 12 mm 125 pitch, but can anyone confirm? And is there a way to find out for sure without tearing the car apart or taking it to a repair tech?

Thanks

hypervish

I know the nut and bolt are 12mm, but I don't know the pitch. I suggest just calling your Lexus parts department.

Here's the DIY Lexmex made on changing that sensor: https://www.clublexus.com/forums/rx-...sor-2-diy.html