Denso A/F Sensor has no Heat Shield

The Bosch A/F sensor has the dreaded heat shield that makes getting a wrench on it so difficult. The Denso does not. Other than that they are identical. The Denso's part number shows a picture with a heat shield on their web site. Can I use the Denso that has the same part number but no heat shield? See the attached pic. The Denso is on the right.

Thank you!

 

My hero, Harbor Freight, doesn't have the right tool. It needs to be short enough to not hit the transmission and thin walled enough to fit in the shield. Guys were taking standard O2 sensors and grinding their walls down to fit, an enormous amount of grinding. The proper tool is a specialized Toyota part which lends credence to your "tamper-resistant" theory. So in goes the Denso! Thanks!

BTW, I ended up not being able to expose the hex nut enough to grab it with a hex socket. So I used a small pipe wrench. That made removal so easy! Worked like a charm. You still need to get rid of enough of the shield to be able to grab the sensor's body with the pipe wrench.

 

Hopefully this car will die before I have to do THIS again! I did read a lot of threads here and elsewhere. I never got reference to the Schley tool. So thanks for that.

What I did get was this replacement is a total PITA. No one had the shroud-less Denso or had even heard of it. So hard is what I was expecting. Really... as it turns out... not so bad.

 

FWIW, I had a P0138 error which a downstream O2 sensor replacement didn't fix. Add me to the group that fixed it by replacing the upstream sensor. No more check engine light!

 

Nor. Cal. near Santa Rosa. All the way across the country.

I see we had some common interests when I was younger, though I was nowhere near as advanced... just a hobby. I used to drag and bracket race. I loved bolting ATR's "go fast" parts onto Buick's Turbo-6 back in the 80's and 90's. I had 4 of those. I also drove on the local road racing tracks. Fun times.

You look like an interesting guy to know... funny who pops up in PriusChat.