Rear o2 Sensor Bung...'99

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05-03-2005, 09:44 AM

MrEous

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Rear o2 Sensor Bung...'99

Is it 18x1.5?...Just wanted to make sure before I get a new bung welded for a pipe.

(Of course, this is for a '99 whereas the o2 sensor is NOT in the catalytic converter.)

I searched and couldn't find a straight answer. Maybe a call to Dallas would be my best bet.

05-03-2005, 01:09 PM

JSutter

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i think you are correct.

05-03-2005, 03:22 PM

meanbean

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Ditto that...M18x1.5 is the correct bolt size.

05-03-2005, 06:52 PM

MrEous

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Thanks John!

05-04-2005, 06:24 AM

meanbean

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Happy to help Bro!

05-04-2005, 07:03 AM

chenzarino

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The O2 sensore IS in the cat on my 99.....

05-04-2005, 07:19 AM

MrEous

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Very strange...take a look under your car. Then look after the cat on the exhaust. Is there a plugged hole? Chances are someone replaced your cat with a '95/96 cat.