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Registered
Join Date: Jun 2003
Location: Honeoye Falls, NY
Posts: 154
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O2 Sensor replacement frequency
How often do you folks replace the O2 sensor? I believe mine is the original in an 86 3.2 with 64k miles. The car seems to run fine but sorta seems to smell rich at idle.
BTW, does anyone know what the little black electrical plug is with a cap that is next to the idle stabilizer motor on a 3.2? Is it some kind of test connection? ![]()
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Big Hooters and 911's will always be in style |
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Registered
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I just replaced the O2 sensor on my 86 at about 67 K miles. The old one was covered in white crust and car definitely runs smoother now with new one. Use a 19" breaker bar and O2 remover socket along with a healthy dose of PB Blaster to get it out.
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Registered
Join Date: Jul 2002
Location: Southern California
Posts: 5,067
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I think the suggested replacement is at 60,000.
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1984 Targa |
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Registered
Join Date: Mar 1999
Location: Cornwall-on-Hudson, New York, USA
Posts: 4,499
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That's what I've heard and always assumed--60,000 miles.
Stephan
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Stephan Wilkinson '83 911SC Gold-Plated Porsche '04 replacement Boxster |
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Slippery Slope Victim
Join Date: Oct 2001
Location: Brooklyn, NY USA
Posts: 4,387
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Just did it on the 85.....at 67,000 made a huge difference.
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MikeČ 1985 M491 |
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