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Acceleration Hesitation (Part 2) 200 1982

For some reason yesterday I put my hand on the O2 sensor in the '82 GL I was trying to get rid of and it was extremely loose in the manifold. Threads are stripped, someone's spliced the single wire at some point, and it's flithy as all get-out, but I expect that last part is normal for something living in exhaust.

Could this have caused all of my stumbling/surging on hard acceleration? Can I bypass the O2 sensor somehow to see if that was the trouble? Testing the sensor will not help me because working or not, with the threads as stripped as they were I don't think it would have had enough of a seal to work properly. I don't know.

Thoughts?
--
Sean Corron. Black '93 244, 117k mi. now with the one-of-a-kind custom Ipe handbrake cover!






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