o2 sensor isolator ever debunked? - Fuelly Forums

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Old 01-13-2009, 11:14 AM   #1
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o2 sensor isolator ever debunked?

so did we basically decide that using one of those was dangerous for your engine? and did they actually save fuel?
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Old 01-13-2009, 12:13 PM   #2
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Did you mean insulator or extender?

One trick is to wrap the O2 sensor, another is to put an adapter ring in to pull it out of the exhaust stream a tad.
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Old 01-14-2009, 02:41 PM   #3
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yeah I'm thinking of the adapter to pull it out of the exhaust a tad.
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Old 01-16-2009, 09:41 AM   #4
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I tried the adaptor on my '88 Escort. It didn't help FE and when I removed the adaptor the 02 sensor was black with soot as though it had been running rich.
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