Another CEL 71 question

[Klowie74]

New here and only owned a 94 (240,000 miles) for a month. I've done a lot of searching and reading on the forum but haven't found exactly what I'm looking for. My CEL went on yesterday and I think it may be because I didn't tighten my gas cap all the way. Is this possible? I pulled code 71 and think I may need a new 02 sensor. The CEL also won't reset. Can you break the 02 sensor by not closing the gas cap all the way? Any information will be appreciated

 

[93yotasr5]

Code 71 is an egr system issue not O2 sensor.
Could be vacuum related or could be the vsv gone bad.

Search landcruiser egr on YouTube and you'll see one way to test it with a vacuum hose.

 

[Klowie74]

Code 71 is an egr system issue not O2 sensor.
Could be vacuum related or could be the vsv gone bad.

Search landcruiser egr on YouTube and you'll see one way to test it with a vacuum hose.

Thanks